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Cases of artificial intelligence in business are appearing at an unprecedented rate and show no signs of slowing down any time soon. When harnessed correctly, AI can dramatically enhance communication, internally and externally. New forms enhance productivity and free up time for the in-depth elements of information transmission, like generating content and improving accessibility for individuals with disabilities. The responsible use of AI in business communication demands ethical considerations and a balance between automation efficiency and people-centered approaches. Still, successful human-AI collaboration is already well underway and yielding impressive results. The Cost of Poor Communication Effective communication is the foundation of corporate success. When employees struggle to communicate well — whether with one another or with customers — the company suffers from the resulting misunderstandings and lack of alignment. The financial implications are astounding, with poor communication costing enterprises a whopping $1.2 trillion yearly. Written communication has been particularly problematic, especially in today’s changing socio-political landscape. For instance, 71% of knowledge workers find it challenging to choose the appropriate words to avoid sounding offensive. Many also struggle to strike the right balance between sounding too formal and too casual when communicating with colleagues and clients. Improving Sustainable Business Communication Through AI Adopting AI can address existing challenges in the workplace and enhance how people share information in several ways. Team Interaction and Meeting Tools AI meeting assistants are revolutionizing note-taking, leading to more effective communication among team members. Platforms like Otter.ai, ClickUp, Gong.io, and Fireflies.ai have become mainstays in remote meetings, saving valuable time and effort. These AI-enabled tools offer a wide selection of intuitive features, including the ability to transcribe speeches with over 95% accuracy, highlight key points, and even analyze emotional tones. Automated note-taking also frees up personnel to listen more intently during meetings. The generated notes are easier to disseminate, reducing the chances of misunderstandings since everyone has access to the same information. Personalized Communication Many CRM providers are integrating AI into their platforms to enhance customer communications. AI can analyze massive amounts of customer data, providing valuable insights that drive decision-making, especially about how and when to communicate. These systems’ ability to imitate how humans learn based on knowledge and experiences allows them to tailor interactions to suit each client. Personalized communication is crucial to higher response rates and engagement, as people tend to pay closer attention to messages catering to their specific requirements. Language Translation Digital technologies have facilitated borderless working conditions where people across multiple countries can collaborate on the same project simultaneously. However, while that is great for diversity and inclusion, language barriers remain a significant problem, and communication suffers as a result. AI-powered translators help bridge the divide and make it easier for individuals and organizations to communicate effectively. With high accuracy and near-instant results, these tools will be pivotal in shaping how brands interact with employees and clients worldwide. For example, Meta’s multilingual machine translation AI can translate between any pair of 100 languages directly. This unlocks a broader target audience for firms since customers on the other side of the globe can easily understand marketing messages and related content. Enhanced Chatbot Functionality A recent survey shows that 56% of businesses use AI in customer support functions, especially for enhancing chatbot functionality to serve consumers better. Sophisticated bots can now respond intelligently to user inquiries by leveraging advanced analytics and machine learning capabilities. These systems also make it easier for customers to communicate with them. For instance, AI-powered bots can analyze user-provided voice input or provided text to make sense of the request and formulate smart responses. Unlike rule-based bots, AI chatbots are context-aware and can learn continuously from prior interactions, making them increasingly intelligent with every interaction. Soon, people will likely not know the difference between chatting with a human CSR agent and a machine. Natural Language Processing (NLP) Algorithms NLP saves employees from spending too much time trying to navigate an ever-expanding field of potentially offensive expressions. They can simply ask the AI tool to create and convey the message correctly. This feature also enables businesses to utilize AI tools to generate relevant, targeted content at scale. Marketing teams can personalize pieces to align with specific audience segments and foster stronger relationships. Leverage AI to Enhance Business Communication. As enterprises continue to adopt data-driven processes, AI will hugely impact how they communicate with their personnel and customers. Automation and ML technologies are powerful tools that can augment and complement human communication. Leaders must recognize this game-changer if they intend to maintain their innovative edge. Sources: https://www.grammarly.com/business/learn/state-of-business-communications-2023/ https://blog.huddles.app/can-ai-ensure-accuracy-in-your-meeting-notes/ https://blog.array.com/how-fintechs-are-balancing-innovation-while-adding-value-for-their-customers-and-to-their-bottom-line https://about.fb.com/news/2020/10/first-multilingual-machine-translation-model/ https://rehack.com/ai/artificial-intelligence-business-applications/ https://www.sciencedirect.com/science/article/pii/S1877050923011158 Cases of artificial intelligence in business are appearing at an unprecedented rate and show no signs of slowing down any time soon. When harnessed correctly, AI can dramatically enhance communication, internally and externally. New forms enhance productivity and free up time for the in-depth elements of information transmission, like generating content and improving accessibility for individuals with disabilities. The responsible use of AI in business communication demands ethical considerations and a balance between automation efficiency and people-centered approaches. Still, successful human-AI collaboration is already well underway and yielding impressive results. The Cost of Poor Communication The Cost of Poor Communication Effective communication is the foundation of corporate success. When employees struggle to communicate well — whether with one another or with customers — the company suffers from the resulting misunderstandings and lack of alignment. The financial implications are astounding, with poor communication costing enterprises a whopping $1.2 trillion yearly. a whopping $1.2 trillion a whopping $1.2 trillion Written communication has been particularly problematic, especially in today’s changing socio-political landscape. For instance, 71% of knowledge workers find it challenging to choose the appropriate words to avoid sounding offensive. Many also struggle to strike the right balance between sounding too formal and too casual when communicating with colleagues and clients. Improving Sustainable Business Communication Through AI Improving Sustainable Business Communication Through AI Adopting AI can address existing challenges in the workplace and enhance how people share information in several ways. Team Interaction and Meeting Tools Team Interaction and Meeting Tools AI meeting assistants are revolutionizing note-taking, leading to more effective communication among team members. Platforms like Otter.ai, ClickUp, Gong.io, and Fireflies.ai have become mainstays in remote meetings, saving valuable time and effort. These AI-enabled tools offer a wide selection of intuitive features, including the ability to transcribe speeches with over 95% accuracy , highlight key points, and even analyze emotional tones. with over 95% accuracy with over 95% accuracy Automated note-taking also frees up personnel to listen more intently during meetings. The generated notes are easier to disseminate, reducing the chances of misunderstandings since everyone has access to the same information. Personalized Communication Personalized Communication Many CRM providers are integrating AI into their platforms to enhance customer communications. AI can analyze massive amounts of customer data, providing valuable insights that drive decision-making, especially about how and when to communicate. These systems’ ability to imitate how humans learn based on knowledge and experiences allows them to tailor interactions to suit each client. Personalized communication is crucial to higher response rates and engagement, as people tend to pay closer attention to messages catering to their specific requirements. to tailor interactions to suit to tailor interactions to suit Language Translation Language Translation Digital technologies have facilitated borderless working conditions where people across multiple countries can collaborate on the same project simultaneously. However, while that is great for diversity and inclusion, language barriers remain a significant problem, and communication suffers as a result. AI-powered translators help bridge the divide and make it easier for individuals and organizations to communicate effectively. With high accuracy and near-instant results, these tools will be pivotal in shaping how brands interact with employees and clients worldwide. For example, Meta’s multilingual machine translation AI can translate between any pair of 100 languages directly. This unlocks a broader target audience for firms since customers on the other side of the globe can easily understand marketing messages and related content. any pair of 100 languages any pair of 100 languages Enhanced Chatbot Functionality Enhanced Chatbot Functionality A recent survey shows that 56% of businesses use AI in customer support functions, especially for enhancing chatbot functionality to serve consumers better. Sophisticated bots can now respond intelligently to user inquiries by leveraging advanced analytics and machine learning capabilities. 56% of businesses use AI 56% of businesses use AI These systems also make it easier for customers to communicate with them. For instance, AI-powered bots can analyze user-provided voice input or provided text to make sense of the request and formulate smart responses. Unlike rule-based bots, AI chatbots are context-aware and can learn continuously from prior interactions, making them increasingly intelligent with every interaction. Soon, people will likely not know the difference between chatting with a human CSR agent and a machine. AI chatbots are context-aware AI chatbots are context-aware Natural Language Processing (NLP) Algorithms Natural Language Processing (NLP) Algorithms NLP saves employees from spending too much time trying to navigate an ever-expanding field of potentially offensive expressions. They can simply ask the AI tool to create and convey the message correctly. This feature also enables businesses to utilize AI tools to generate relevant, targeted content at scale. Marketing teams can personalize pieces to align with specific audience segments and foster stronger relationships. Leverage AI to Enhance Business Communication. Leverage AI to Enhance Business Communication. As enterprises continue to adopt data-driven processes, AI will hugely impact how they communicate with their personnel and customers. Automation and ML technologies are powerful tools that can augment and complement human communication. Leaders must recognize this game-changer if they intend to maintain their innovative edge. Sources: https://www.grammarly.com/business/learn/state-of-business-communications-2023/ https://www.grammarly.com/business/learn/state-of-business-communications-2023/ https://blog.huddles.app/can-ai-ensure-accuracy-in-your-meeting-notes/ https://blog.huddles.app/can-ai-ensure-accuracy-in-your-meeting-notes/ https://blog.array.com/how-fintechs-are-balancing-innovation-while-adding-value-for-their-customers-and-to-their-bottom-line https://blog.array.com/how-fintechs-are-balancing-innovation-while-adding-value-for-their-customers-and-to-their-bottom-line https://about.fb.com/news/2020/10/first-multilingual-machine-translation-model/ https://about.fb.com/news/2020/10/first-multilingual-machine-translation-model/ https://rehack.com/ai/artificial-intelligence-business-applications/ https://rehack.com/ai/artificial-intelligence-business-applications/ https://www.sciencedirect.com/science/article/pii/S1877050923011158 https://www.sciencedirect.com/science/article/pii/S1877050923011158

How Can AI Improve Sustainable Business Communication?

6 Simple Performance-Boosting Tips to Get Started With BenchmarkDotNet

In an age where attention spans are fleeting and choices abundant, the success of any online platform hinges on its ability to provide seamless, swift, and engaging interactions. In fact, will leave a website if it takes longer than three seconds to load. 40% of visitors With just a one-second delay potentially causing a significant drop in user engagement, conversion rates, and overall satisfaction, it’s imperative that web developers prioritize immediacy. This rings especially true for applications, the backbone of many dynamic websites and web services. Ruby on Rails At JetRocket we care about our applications’ performance a lot. Performance in my opinion is not only a server response time. Of course, responses should always be fast, but deployments, tests, and application front-end should also run at maximum speed. Spanning almost 15 years of our history, we collected a quite vast collection of tools and techniques that help us to provide the best performance to our clients’ projects. Database Problems & Tools # 1 Bullet https://github.com/flyerhzm/bullet The first that comes to mind when you hear about database performance issues in Rails would probably be an N+1 problem. The N+1 problem occurs when an application makes N+1 database queries to retrieve related data. In the context of Rails, this often happens when you have a parent model and associated child models, and you retrieve a list of parent records along with their associated child records. Each parent record is retrieved with an additional query to fetch its associated child records. This can lead to a significant increase in the number of database queries and negatively impact the application's performance. The Bullet Gem is designed to enhance your application's performance by minimizing the frequency of queries it executes. During your application development, it actively monitors your queries and provides alerts when you should consider implementing eager loading (to avoid N+1 query issues), when unnecessary eager loading is detected, or when you should make use of counter cache. Bullet alerts can be sent via browser JavaScript-based popups, log files, with different monitoring systems, or even with Slack. # 2 N+1 Control https://github.com/palkan/n_plus_one_control While Bullet is designed to detect any N+1 queries in development, N + 1 Control is designed to be used in tests. It evaluates the code under consideration several times with different scale factors to make sure that the number of DB queries behaves as expected. #3 NewRelic, AppSignal, and other APM systems These tools offer various features and integrations that can assist you in monitoring and diagnosing N+1 query problems and other performance issues in your Ruby on Rails applications. Above is the screenshot from AppSignal indicating a request with an N+1 problem. #4 PgHero https://github.com/ankane/pghero PgHero is a powerful database optimization web dashboard explicitly designed for . Founded by Andrew Kane, PgHero offers comprehensive features and insights to help users identify and resolve performance bottlenecks, ensuring their applications run efficiently and smoothly. PostgreSQL One of PgHero's standout features is its real-time dashboard, which gives users a holistic view of their database's performance metrics. This includes information on query execution times, slow queries, database locks, and more. With this dashboard, users can quickly pinpoint areas that require attention and take proactive measures to optimize their database queries and configurations. Additionally, PgHero offers historical query analysis, allowing users to track query performance over time and identify trends or anomalies. PgHero is distributed as a Rails Engine or Docker image, which seems a better option for me and can be easily added to your Rails application deployed with Kamal as an accessory. #5 Rails PG Extras https://github.com/pawurb/rails-pg-extras Of course, many of you know that Postgres stores a lot of its internal metrics and params and they are available through different views. Likewise, if you need to get information about used and not used indexes you will probably query view (You can read more about this here ). pg_stat_user_indexes https://www.postgresql.org/docs/current/monitoring-stats.html The goal of Rails PG Extras is to offer robust insights from your PostgreSQL databases. It encompasses both rake tasks and the Ruby method designed to retrieve data regarding a Postgres instance. It encompasses details such as locks, index utilization, buffer cache hit ratios, and vacuum statistics. Through the Ruby API, developers can seamlessly incorporate this tool into tasks like automated monitoring. #6 Strong Migrations https://github.com/ankane/strong_migrations Strong Migrations catches unsafe migrations in development, and while having potentially dangerous operations in migrations does not affect your application performance directly, adding index non-concurrently or adding a foreign key can slow down your application while you deploy a new release. Anyway, keeping your migrations well organized is just another way to improve your application's overall quality and improve team knowledge, this is why we have strong migrations gems in all our projects. #7 Database Validations https://github.com/toptal/database_validations Another gem that makes your codebase not only faster, but better in general is database validations. It implements two new methods for ActiveRecord: and . As you can guess they work similarly to existing active record methods, but work on a database level. Based on benchmarks included in the gem it is 2.5x times faster than active record methods. Besides it ensures real uniqueness of values and has built its Rubocop rules to force your team to use it. db_belongs_to validates_db_uniqueness_of #8 Database Consistency https://github.com/djezzzl/database_consistency Database consistency gem created by Evgeniy Demin, author of database_validations. The main goal of the project is to help you avoid various issues due to inconsistencies and inefficiencies between a database schema and application models. Lintering & Audit You probably already have Rubocop configured in your project to provide a unified code style and keep the code base in good shape. #9 RuboCop Performance https://docs.rubocop.org/rubocop-performance/cops_performance.html https://github.com/rubocop/rubocop-performance RuboCop rules can improve not only your code style but also the performance of your code. This is where rubocop-performance gem comes in place. Look at a couple of examples below for nonobvious performance improvements. Case-insensitive string comparison is faster with compared to plus . String#casecmp String#downcase == # Performance/Casecmp

# bad
str.downcase == 'abc'
str.upcase.eql? 'ABC'
'abc' == str.downcase
'ABC'.eql? str.upcase
str.downcase == str.downcase

# good
str.casecmp('ABC').zero?
'abc'.casecmp(str).zero? When working with arrays you can modify existing Array instead of creating a new intermediate array for each iteration. # Performance/ChainArrayAllocation

# bad
array = ["a", "b", "c"]
array.compact.flatten.map { |x| x.downcase }

# good
array = ["a", "b", "c"]
array.compact!
array.flatten!
array.map! { |x| x.downcase }
array #10 Fasterer https://github.com/DamirSvrtan/fasterer Another tool that can be used for automated code performance improvements is Fasterer. Fasterer is based on FastRuby idioms and can be configured to run in your https://github.com/fastruby/fast-ruby CI/CD pipeline. #11 bundler-leak https://github.com/rubymem/bundler-leak Another tool from fast-ruby that may help you is bundler-leak. It analyzes your Gemfile over the database and provides you with information on what parts of your bundle may have memory leaks. I usually have bundler-leak as a part of my CI/CD pipeline. RubyMem Data Serialization Speed in data serialization is crucial because it directly impacts the efficiency and performance of your applications. As a Ruby programmer, you understand the importance of optimizing code for better execution. When data serialization to JSON is fast, it reduces the overhead of converting data into a human-readable format, allowing your applications to transmit and receive data swiftly. As far as I know, there are two serializers that can be declared as fastest in Ruby's world. #12 Panko https://github.com/yosiat/panko_serializer Panko is inspired by ActiveModelSerializers (which is currently not in active development ), but works much faster . https://github.com/rails-api/active_model_serializers#status-of-ams https://panko.dev/docs/performance.html The performance result is achieved by four approaches: Using the C extension of OJ library Incremental serialization of Ruby arrays Type casting that does not rely on ActiveRecord Figuring out the metadata, ahead of time Of course like in any other library, there are some cons: Panko can serialize only ActiveRecord objects. #13 Alba & OJ https://github.com/okuramasafumi/alba Compared to Panko, Alba can serialize any Ruby object and do it fast by using OJ library as the backend (Alba allows you to configure different backends). #14 GraphQL Performance Tools When dealing with APIs, which I usually use when building mobile applications, you cannot preemptively optimize your queries, like you do in . There is no silver bullet that will make everything work faster, however, there is a batch of tools that may help you. GraphQL REST GraphQL Batch https://github.com/Shopify/graphql-batch ArLazyPreload https://github.com/DmitryTsepelev/ar_lazy_preload GraphQL::PersistedQueries https://github.com/DmitryTsepelev/graphql-ruby-persisted_queries GraphQL::FragmentCache https://github.com/DmitryTsepelev/graphql-ruby-fragment_cache Profiling Profiling allows you to identify bottlenecks and areas of improvement in your applications. #15 Rack Mini Profiler, Stackprof & MemoryProfiler https://github.com/MiniProfiler/rack-mini-profiler https://github.com/tmm1/stackprof https://github.com/SamSaffron/memory_profiler When I hear about profiling in Rails, I always think about Rack Mini Profiler. This Rack middleware for Ruby web applications enables real-time profiling and performance monitoring. With it can also provide flamegraphs. I especially love that it is designed to work both in production and development. stackprof By adding gem to your application bundle, you can also do memory profiling for each request directly in your browser, which is really helpful. memory_profiler Dockerfile optimization Dockerfile optimization is crucial in enhancing the overall performance and efficiency of your Ruby on Rails application. Here are some key reasons why Dockerfile optimization impacts your Rails application: : The size of your Docker container directly affects deployment times, resource consumption, and scalability. Container Size and Efficiency : Docker containers share resources with the host system. An inefficient Dockerfile can lead to excessive resource consumption, causing performance bottlenecks and potential service interruptions. Resource Utilization : Docker allows you to package your Rails application and its dependencies together. An optimized Dockerfile defines dependencies explicitly and installs only what's necessary. Dependency Management : Dockerfiles are used to create reproducible environments. An optimized Dockerfile guarantees consistency across development, staging, and production environments. Reproducibility : When your application needs to scale to handle increased traffic, the efficiency of your Docker containers becomes critical. Scalability : An optimized Dockerfile speeds up your continuous integration and continuous deployment (CI/CD) pipeline. CI/CD Pipeline Efficiency : Running containers in the cloud often incurs costs based on resource usage. By optimizing your Docker containers, you can reduce resource utilization, leading to cost savings in terms of infrastructure and cloud services. Cost Savings For me, Dockerfile optimization is not just a technical concern but a strategic one. It impacts your Ruby on Rails application's performance, scalability, security, and cost-effectiveness. The biggest question is how to measure everything stated above. There are a lot of articles dedicated to Dockerfile optimization and I will not cover everything in this article, however, I want to share one tool that I always use. #16 Dive https://github.com/wagoodman/dive Dive is a powerful console utility explicitly designed for Docker and OCI image exploration. It empowers developers and system administrators to delve deep into the intricacies of these container images. With Dive, you can examine the image layers and uncover valuable insights on optimizing and reducing the overall size of your Docker or OCI image. Furthermore, Dive can be used with your CI/CD pipelines to make sure that changes made to your Dockerfile do not affect its performance and efficiency. Caching Caching can bring a significant performance boost to your applications as well as bring a lot of pain to your life. I don’t know a better manual about caching in Rails than Rails guides: https://guides.rubyonrails.org/caching_with_rails.html #17 Dalli https://github.com/petergoldstein/dalli If you decided to use caching in Rails then probably you will end with Memcached as a cache store. In this case, don’t forget to switch to dalli memcached driver. Originally created by Mike Perham (author of Sidekiq) more than 10 years ago, it is still the best way to use Memcached from Ruby: it is fast, secure, and support complex Memcached configurations. Tests Performance Last but not the least. Your application tests (specs in my case) should be as fast as possible, long-running tests will reduce the time that you can afford on everything described above. #18 Test Prof https://github.com/test-prof/test-prof Test Prof is a collection of profilers, recipes and RuboCop rules to make your test suite run fast. Of course, this is not a silver bullet, and it requires a lot of manual work, but it gives you instruments to do this work. As for me, I use , , and in every project, even in a new one, even if the test suite is relatively fast. let_it_be before_all factory_default Conclusions It is vital to understand the significance of optimizing Rails applications for better performance. Spending time and resources on this area can lead to significant enhancements. User experience is crucial in today's competitive digital world. Optimizing Rails applications means more than just improving speed; it also means delivering a more seamless, responsive, and satisfying user experience. I have provided a thorough overview of different tools and techniques that you can utilize. Moreover, it is essential to note that Ruby and Rails are not dead or slow. Like any other technology, it is important to be diligent with your Ruby code and understand how to enhance it. Also published here.

Enhancing Rails Application Performance: 18 Essential Tools and Techniques

There is a myriad of tools for using Bitcoin and other crypto-currencies, but not all of them have the same characteristics or the same advantages and disadvantages. This is everything you need to know about e-wallets, with a selection of the best multi-crypto wallets. The e-wallet (or “electronic wallet”) is the basic tool for using crypto-currencies. It is used to store, send, receive and sometimes exchange crypto-currencies. Choosing it well is therefore crucial since a wallet provides both the safe and the day-to-day management of your money (from this point of view, the wallet can be seen as the future of banking type services). While crypto-currencies are spreading and becoming more democratic, the wallet is the central element of the crypto universe, much like the web browser is for the Internet. It must be understood that there is a considerable number of wallets. Each of the 2000 existing crypto-currencies generally has its own wallet, and the main crypto-currencies (Bitcoin, Ethereum, Litecoin in particular) can be managed by a lot of wallets and services. WHO CONTROLS YOUR BITCOINS? While searching the web, you will find lots of distinguishes between different types of Bitcoin wallets. Hot or cold wallet, multisig or not, on mobile or desktop, online or offline, etc. These distinctions are interesting, but often obscure the main feature of wallets: the concrete way in which addresses are created that store your bitcoins, and who has the control. From this point of view, there are in fact two (and only two) types of Bitcoin wallets: those that rely on services that manage the keys (called “custodial wallets”), and those that are self-controlled (“non-custodial”). In the first case, saying that you have a Bitcoin wallet is a misnomer: you actually have a right to access Bitcoin wallets created and maintained for you by a third party company. In the second case, you own (fully and independently) your own Bitcoin wallet (and the bitcoins in it). Without going into the technical details, the difference lies in the way in which cryptographic keys associated with bitcoins and cryptos are created. If you want to make an analogy, imagine that you rent a safe deposit box in a bank. Whenever you want to access your safe box, you provide proof of identity and a signature, and the banker gives you the key to open the safe box (key you must leave before leaving). Thus, you do not really own the safe and its keys, you just have a right of access, as part of a service offered by the bank. In the second case (non-custodial), not only are you really the owner of the safe (which is at home), but you are the one who makes the keys, and no one but you has access to these keys. This distinction between custodial and non-custodial is therefore quite fundamental and involves many consequences. 1. Services (Custodial Wallet) In appearance, this is very simple and without headache. You rely on a company that manages your cryptos for you. You just have a login and password to access your corners that are, in practice, stored on the wallets of this company. Advantages: : You do not control anything (especially not transaction fees or withdrawals). These services are a favorite target for hackers. ‘Loud’ hacking has occurred in the past and when it does, you risk losing everything. Some services, including crypto-banks but also many exchange offices, require a lot of documents and proof of identity (and are also likely to inform the authorities about your assets). Disadvantages In this category are the vast majority of traditional exchange offices (exchanges), companies offering banking services and probably some other solutions of “wallet hosted”. 2. User Controlled Wallets (non-custodial wallet) You are the only master on board. Your bitcoins and cryptos are at home and no one else has access to them. Purses require nothing at startup, and you become “your own bank”. In general, it is very easy to import the contents of a wallet into another wallet. Advantages: : You must respect some rules and good practices. For example, if you have not saved the keys of the purse stored on your mobile and you lose your mobile, you lose (forever) access to your bitcoins. Disadvantages In this category are: “physical wallets”, paper wallets and many Bitcoin and multi-coin electronic wallets. Remarks . Do not confuse the distinction “custodial or not” with the fact that a wallet is accessible or not on the web. You can access via the web a service that allows you to manage your own private keys, and download on to a mobile app. Do not confuse private keys with a simple password. All services and applications are protected by a password (or PIN) but that does not mean that you have control of your coins. . The non-custodial wallets are most often deterministic (or, in the English parlance, “Hierarchical deterministic, HD”) and comply with the BIP32, BIP39 or and/or BIP44 standards. In practice, this means that all keys of the wallet are derived from a single source, called “seed”, sometimes “passphrase”. This seed is usually a sequence of 12 random words (sometimes 24), generated or chosen during the creation of the wallet. Saving this seed after creating a wallet is absolutely essential. If you lose access to your wallet, only the seed will allow you to recover your cryptos. TYPOLOGY OF CRYPTO WALLETS There are five main types of wallets for storing and managing cryptocurrencies. 1. Foreign Exchange Offices Custodial (you never own the keys) Type: Services focus on buying/selling crypto-currencies (from fiat currencies or cryptos). It is usually necessary to provide various proofs or carry out identity checks in order to benefit from the service. Operation: Mostly free, but with fees (sometimes high) on transactions and withdrawals. Cost: Acquire cryptos from classic currencies (fiat), convert cryptos among themselves, invest in the short or medium term. Recommended use: : There are hundreds, such as OKEx, Binance and Huobi in Asia, Coinbase, Kraken or Poloniex in the United States, Paymium in France. Examples : Some decentralized exchange offices (so-called “DEX”) allow the user to manage his own keys. Note 2. Pseudo-banking services (crypto-banks) It depends (you sometimes have keys) Type: Most often available on mobile, crypto-banks seek to combine the best of both worlds by combining electronic wallet to manage crypto-currencies and traditional banking services (Visa / Mastercard, transfers, IBAN number, etc.). ). How it works: Variable (credit cards, miscellaneous fees). Cost: : Payments and day-to-day management. Recommended use The oldest are Xapo and Wirex (and I recommend them), but a good fifteen new entrants are in the ranks, including TenX, Crypto.com (ex Monaco) or Bankera / Spectrocoin. Examples: Some services like Xapo or Crypto.com manage the keys for you (custodial), others like Wirex let you manage the keys (non-custodial). Note: 3. Wallet on paper (paper-wallets) Non custodial (you manage the keys yourself). Type: The paper-wallet is a way to store bitcoins (or other cryptos) without using any digital network. Once you create a “public key/private key” pair that you print on a piece of paper, you send your coins to the public address, and there you go. Operation: Several sites explain the procedure, such as WalletGenerator or BitcoinPaperWallet. There are also paper-wallets for many other coins. Examples: Free (unless you use a third-party print service). Cost: medium or long term storage. Recommended use: If you follow basic rules (such as making sure your printer’s memory cache is empty after printing), security is good. The process is done offline, your private key has never passed through the Internet or any network and you just have to keep it in a safe place. However, be careful with third-party services marketing personalized paper-wallets: companies printing these wallets have (therefore) keys, and you must not trust them entirely. Note: 4. Physical wallets Non custodial (you manage the keys yourself). Type: An independent electronic device used only to keep cryptocurrencies, and generally offering an excellent level of security. Operation: Examples: The most famous (and respected) brands are Ledger and Trezor, but many other solutions appear like those of Archos, Coolwallet or Xzen. There are even hardware wallets targeting children, like Pigzbe. Between €50 and €300. Cost: medium or long term storage (safe). Recommended use: 5. Software wallets In general non custodial (except you manage the keys yourself). Type: Applications (mobile, desktop or online services) to manage your own wallet cryptos. How it works: See below. Examples: Free. Cost: Payments and day-to-day management, short/medium term storage. Recommended use: Ensure that these applications comply with BIP32, BIP39 or BIP44 standards. Note: EVOLUTION AND TRENDS The first Bitcoin wallet could only handle Bitcoin, but the trend today is for multi-coin wallets with various functions, sometimes called “universal wallets”. There is, in fact, a very clear evolution of the most modern wallets: · s. It is painful to manage many different wallets, and the leaders of today are those allowing, in addition to Bitcoin, to keep dozens, even hundreds of other crypto-currencies. It is likely that one day we will have an app managing all existing cryptos and tokens. Multi-coin · . Here again, the trend is very clear. Many wallets now integrate in a native way the possibility of exchanging crypto-currencies between them. It is likely that others are moving towards peer-to-peer credit (P2P) or other forms of bank-type services. The border between wallet and crypto-bank should gradually fade. Multi-services · . An increasing number of wallets integrate the detailed display of courses, management of alerts on portfolios, couriers and even customizable news feeds. The wallet becomes the application centralizing everything related to cryptos. Multi-content · . This is less a trend than a bias, but the biggest wallet providers (as well as the big web browser providers) are looking to be present on all platforms — Web, desktop and mobile. Multi-platform THE BEST MULTI-CRYPTOS AND NON-CUSTODIAL SOFTWARE COINS Preliminary Remarks Ø I tested all the software below and I’ve used some of them everyday for several years. However, I can not vouch for it and I decline any responsibility for the level of security or sustainability they offer. Ø As always, I focus on the simplest tools of employment, targeting the general public. Ø In addition, as these are software wallets, they are intended for daily use of cryptocurrencies, but not necessarily storage of large amounts of money in the long term. For storage, it is better to go for hardware wallets. Ø I hardly mention here the wallets particularly dedicated to the universe Ethereum, which are by logic a little different. Ø All the tools mentioned here are free. Jaxx — The Swiss Army Knife: https://jaxx.io Multi-platform. Offering a large number of crypto-currencies, a synchronization between different wallets on different platforms and an integrated exchange office, Jaxx is very representative of the trend I mentioned earlier. The wallet comes under a complete redesign, Jaxx Liberty, including even more options and services (already available on Android but not yet for Desktops, on which the previous version, Jaxx Legacy, is still usable). Flexible and complete. Exodus — The elegant: https://www.exodus.io Desktop (Linux / Mac / Windows). Exodus is characterized by its particularly neat interface, both elegant and intuitive. It is also multi-currency and includes an integrated exchange, while offering advanced options (hide crypts displaying neglected scales, for example). Serious and aesthetic. BRD — The Very Simple: https://brd.com Mobile (Android / iOS). BRD (formerly BreadWallet or Bread) has chosen a minimalist bias: the interface is simplified to the extreme, at the risk of appearing stripped. It does not include a huge amount of different cryptos, or many complementary services, but includes the ability to easily invest in emerging cryptocurrency (ICO). Easy and readable. Other options to consider ; § — — Mobile (Android / iOS). Interface clear, only about thirty coins but the (rare) possibility to buy cryptos directly from currency fiat ($/€) by bank transfer or credit card. Abra https://www.abra.com § — — Desktop (Linux / Mac / Windows) and soon on Mobile. Managing more than 300 cryptos, with integrated innovative exchange and advanced options. Still in beta but promising (competitor of Exodus). Atomic Wallet https://atomicwallet.io § — — Mobile (Android / iOS). Wallet multi-coin (with an emphasis on Ethereum tokens), clean interface and strong security (competitor BRD). Enjin https://enjinwallet.io § — — Mobile (Android / iOS). Other wallet minimalist but solid, with an integrated exchange. Edge https://edge.app You will find a comparison (not always up to date but serious) of several wallets on Bitcoin.org. GOOD PRACTICES a. Save your username and password, preferably via a dedicated password manager (LastPass, 1Password or other). For non-custodial wallets, saving your seed (in many places, even on paper) is absolutely essential. Let’s repeat it: if your bitcoins are on your computer and you have not kept your seed elsewhere, you will lose all your money if your computer is stolen or stops working (hard drive failure). Never click on an email to identify yourself on a web service. Phishing is very common for hosted exchanges and wallets. Rather, access your wallets hosted by a blank page of your browser, via your bookmarks, by checking the web address several times before logging in. b. Never disclose your passwords, private keys or seed to third parties. Never send them by email. c. Divide your bitcoins and cryptos between several wallets. It is easy, fast and inexpensive to send crypto-currencies from one address to another (that’s a big part of their interest). Use this to your advantage, minimizing the risks! d. IN CONCLUSION Personally, I do not look forward to the rise of large Bitcoin wallet hosting services, including Coinbase. Bitcoin’s philosophy and purpose, and crypto-currencies in general, is to get rid of intermediaries and give the user back control over his money. Do we really want to birth once again, digital giants who control everything including the rain and weather? Placing your cryptocurrencies on third-party services is like moving the problem: banks are being eliminated, to give weight to new businesses, which will themselves become new forms of banks. They will arbitrarily set the costs and limits of their services, increase the conditions of entry, get closer to governments, and demand more and more documents, vouchers and other administrative paperwork. Non-custodial wallets will evolve in the opposite direction: they will give even more freedom, power and control to users, while incorporating more and more secure mechanisms to limit the risk of hacking and theft. <a href="https://medium.com/media/3c851dac986ab6dbb2d1aaa91205a8eb/href">https://medium.com/media/3c851dac986ab6dbb2d1aaa91205a8eb/href</a>

How to Choose Your Bitcoin and Crypto-currency Wallet

Bill Barhydt on How ABRA Is Building a Global Bank With Bitcoin

The reason I have decided to write this article is that at the moment our team is migrating a complex app from Meteor to GraphQL. Before describing why we are doing this, I want to briefly tell about the concept of this project. The project we are working on is a — a complex system that connects on-demand service providers (that offer such services as dumpster rental, sewage treatment, landscape and equipment management, etc.) with companies of different sizes. work order management app The platform helps companies to manage work orders, keep track of all documentation, automate invoice processing and eliminate paperwork. The app consists of 3 products that can be customized to the company needs Work order website for companies, where they can create and track work requests, assign suppliers, create reports, manage invoices, etc. Work order mobile app for technicians that allows leaving reports about the work done, track their working time, set work availability, etc. Chatbot system that automatically processes the requests from companies and creates work orders. As you can see, this project consists of different applications that deal with a large number of users, requests, and data. One more important aspect of this product is that it has to process all the data in real time. That’s why we have chosen Meteor for building the MVP. Meteor for MVP. Why we have chosen Meteor for this project is a full-stack JavaScript framework that covers all aspects of writing web or mobile applications. It provides ready-to-use instruments that simplify the development process. Another key feature of Meteor is a reactive data flow by default. All the data exists on the client in real time, so changes made in the database immediately populate to all connected clients. Meteor Meteor is exceptionally useful when it comes to MVP development — you can start in minutes and postpone making super complex decisions regarding app architecture until you really need them. As Donald Knuth has said: “Premature optimization is the root of all evil,” so you know what I mean. Meteor also has great integration with the most popular front-end libraries (React, Angular, Vue), hosting as a service, integration with (talking about social networks login here) and established zero configuration build system (tell me about web pack config, am I right?). OAuth You can also easily build and publish Android and iOS apps with Meteor (using Cordova), which are not that good as native apps but suit great for MVPs or even production-ready apps for simple products. Meteor comes handy when you want to build an MVP — you just concentrate on the look, feel and functionality. Moreover, Meteor allows building real-time web apps (like chat, games, collaboration tools, etc.) easily. This is convenient for any application — users quickly become dependant on real-time data in their apps and you can provide it to them in no time. When have we made a decision to migrate from Meteor to GraphQL? As our app became larger and more needs for various clients (few web and mobile apps, microservices and third-party applications) appeared on the horizon, we have realized that we need more universal and scalable solution for the backend. The obvious option is to build REST server using any language. But since we live in 2018, there is something better. Ladies and gentlemen, I present to you (well not really I, but mostly Facebook. You can dive into GraphQL particularities in ). GraphQL our articles In short, GraphQL is a query language that allows you to work with your application’s data-layer in very declarative and rather crisp way. It focuses on the connection between entities (thus ‘graph’). It is implemented in most of the popular languages and has various client-side frameworks. We’ve chosen Apollo GraphQL family of libraries (not framework or library, Carl!) Here are the main advantages of GraphQL (and Apollo in particular). Main GraphQL advantages Need to provide API endpoint for multiple apps GraphQL is perfect for being an intermediary for multiple clients as it has libraries for most of the platforms. Even if there is no possibility or desire to use a client library you can just POST some JSON and it works! GraphQL encourages incremental adoption You can keep all your previous investments intact and add new functionality using GraphQL server. That was perfect for our case! GraphQL is almost technology agnostic As there are GraphQL implementations in most of the languages, you can easily switch to another technological stack. The same goes for data sources. You can work with any database or external resource for managing your data. This also facilitates integration with third-party services, which was a requirement we had in mind. GraphQL is easy to scale and split into microservices As each of the resolvers is independent, you can easily host some of your apps as a serverless function or even separate service with different stack and hardware resources. Such libraries as Apollo cover a lot of the complicated decisions regarding building API When writing REST server from the ground you can easily mess up with the architecture and have troubles in making it fly in the future. This particularly relates to the controller level of your application. GraphQL takes care of connection between entities in your data You can have your database normalized at last as all the joins will be covered for you. This has given us some perks that we will cover later. But in general, this is one of the main ideas behind GraphQL and it really rules! Want a more high-level description? Check out this . article It has an awesome client-side infrastructure You can really enjoy using GraphQL on the client. The client app can easily define data it needs in a human-readable way. There is no redundant information transferring, which means less traffic use and faster load time. Moreover, with query hashing, you basically only send data through the wire. Just look into — it rocks! hosting queries and responses on CDN As an app grows, auto-tests are essential for facilitating changes and improving the codebase. Lack of test coverage will most likely result in longer development time, higher error-proneness and overall frustration. Since there are resolvers in the form of pure functions at the core of GraphQL architecture, testing them is a pure delight! Meteor provides a sophisticated testing framework as well, but it is overcomplicated and obfuscates testing because of a number of technical details. Awesome features for developers They include client dev tools, support of optimistic rendering and subscriptions, automatic documentation with GraphiQL, great support for FP paradigm and types, tools for performance monitoring and optimization. The process of switching to GraphQL As GraphQL supports incremental adoption, we began with replacing old functionality and building a new one with GraphQL endpoints. It turned out to be a rather smooth transition with a few exceptions. Let’s see a brief description of a transition for some particular entity collection from Meteor to GraphQL: Create a schema and resolvers for queries and mutations in your GraphQL server. Cover it all with tests. Optional (no, it’s not). We prefer TDD but it’s up to you. Replace fetching data through Meteor with Apollo client. Replace Meteor methods with mutations. Create and add subscriptions to have Meteor-like reactivity for your data if needed. Replace references to the removed Сollection that remained with querying your GraphQL endpoint. Remove the code related to the entity from Meteor. This way you can replace your existing Meteor stack with more flexible GraphQL. Main challenges and difficulties while migrating from Meteor to GraphQL and how you can solve them Now let’s talk about serious business. Do you know that feeling when you read some article with ponies and rainbows everywhere, then you start to work on something similar and it turns into vampires and cemeteries? I would like to avoid such an experience. It’s no secret that we have faced some pretty serious problems while making transitions and it took some time to figure out the best solutions. Let’s dive in more details here. . As I’ve mentioned before, users prone to expect the data to update in real-time at any moment. What was more or less trivial with Meteor, requires a pretty robust setup with Apollo GraphQL. To make it even bitter, the API for subscriptions is not fully developed and stable. Problem one. Meteor-like for fun : You can choose one of the following solutions Have your subscription to notify the client that data have changed and make it refetch all current views Notify client about the changes to the certain data and make it refetch some particular queries Implement a full-scale subscription, pass all the necessary data with subscription and update the view. First two options are probably better than polling but still pretty ugly. Let’s briefly describe the third solution using the following example: Imagine you have simple TODO app with TODO itself and a task that relates to this TODO. Create a subscription for the TODOs on your server using methods described in the documentation. Add simple publication on change of your TODO item. You can put some handler in your mutation resolvers, use some kind of hooks or try new Mongo , if you are using MongoDB). Change Streams Few points to note here: sometimes you’ll need to publish changes to related entity on change of other entity. For example, suppose you can update tasks independently of its TODO. In this case, you’ll need to publish this TODO to have related subscription update views regardless of that TODO itself didn’t change. The trickiest part is client implementation. For this, you need to: Query for data using ordinary query Subscribe this data changes using exact same field set Close an old subscription and initiate a new one if parameters of the subscription have changed (e.g. you have a table with filters. When the filter is changed, close current subscription and start a new one.) If all goes well Apollo will automatically update stored data and views. You can create a pretty straightforward wrapper around default Apollo helper to perform the operation mentioned above. As you can see, subscriptions with Apollo are pretty complex compared to Meteor. But GraphQL is in process of constant development and they might be much easier soon. In particular, there is a concept of ‘live queries’ that will make everything above much more convenient. (check out this for more) article . There is a common known problem in computer science known as ‘n + 1’. It occurs when you try to load a list of some items with a link to other items. Problem two. ’N’ want’s a friend too For example, you query for a list of movies with their directors. In GraphQL, director for each movie will be loaded separately, increasing load on your database. Fortunately, there is an awesome tool by Facebook called . data loader While it looks like magic, it is pretty simple and I urge you to dive into its implementation (just around 250 lines of code). I won’t go into details as there are a lot of articles or . I’m just happy that now you are informed and safe. on the web in the docs You’re probably familiar with this common scenario: the user should be able to use full-text search on every field they can see in the table. Now imagine a table where you have data from multiple entities, e.g.: rating, box-office, country of origin. Problem three. Find this for me. As far as this is a table of ‘movies’, it consists of data from 4 different entities — Movie, Actor, Rating, Country. If a user wants to search across all of your databases for any of these entities using single field — you are in trouble. The thing is when you search for a Movie by an Actor you’ll need to find the actor, then find the movie with this actor, and return Movie with all related data. Moreover, you should do this for every possible scenario and do this quickly. If you were in some more traditional environment, you could make some joins with ‘like’ search and return the result. That is when special third-party services come to the rescue. We’ve chosen . Elasticsearch All you need to do is configure Elastic, load your data to the service and resolve your GraphQL search query using Elastic API. Don’t forget to keep your data updated. And I hope you won’t need real-time data there, will you? Well yeah, it is not that simple. We will cover this in more details in the following articles. What is nice about this is that with GraphQL you will still have the awesome power of relations between entities. When you have your Elastic movie search result, GraphQL will automatically stitch it together with Actors, Ratings, and Countries! I want to mention a few more important things to keep in mind when you start your Meteor to GraphQL migration: — you’ll need to figure out Meteor auth. mechanisms and replace it with a few lines of code and raw node libraries. You’ll also need to login a user both on the GraphQL and Meteor servers. Authentication and Authorization . It may take time to do things in optimal way, as it is not common to think in graphs in software development. You usually try to fetch all possible data for a particular request and stitch it according to the user needs. But with GraphQL you need to concentrate on getting only the root a user asked for and let the magic happen. Dig into GraphQL way of thinking before making serious moves . Do not create queries like . Just go with . Try to model you schema according to existing relations movies (actor) {} Actor { movies } while reading the docs. Those are really powerful instruments which can come in handy on multiple occasions. Do not skip Interfaces and Unions and API you used yesterday may become obsolete tomorrow. There are much better ways of doing stuff and awesome useful instruments emerge every week. So you have to live with it. Bear in mind that GraphQL implementations develop really quickly , obsolete or confusing. You’ll need to find some articles or even dive into source code and come up with your own article. Or a couple of articles. Documentation for some parts of Apollo stack might be incomplete Migrate or not to migrate? To summarize — GraphQL and Meteor are awesome tools for web app development. Meteor lets you start easily and is perfect for small or medium scale real-time apps. But if you require a lot of flexibility, need to support multiple clients and have a complexly distributed data layer — is a way to go. GraphQL Originally published at apiko.com on July 10, 2018.

Switch from Meteor to GraphQL: Secrets of Hassle-Free Migration Process

Sheep with a bell (Source: ) Unsplash Notifications are the must-have feature for almost any kind of mobile apps and marketplaces these days. Various updates and reminders depend on this, at first sight, a tiny feature. In this article, we’d like to share with you the following: The specifics of different app notifications;. What kind of notification would work the best for your B2B or B2C marketplace app? [Code part] How to create SMS alert system, email notification system and in-app messaging examples for your marketplace type; Tips on how to how to build notification system your customers will love, taking into consideration in-app messaging and mobile push notifications best practices. Before we show how to build a notification system, let’s start with random types of mobile app notifications: 1. Push notifications (of course) Push notifications are the very ‘rockstar’ of mobile notification system these days. This kind of notifications has become popular with the rise of smart devices but, actually, take their beginnings from the early 2000s. Such notifications are used for various purposes in the apps of random types. Remind user of to-do tasks, your friends’ birthday dates or the future events — it’s by far not the complete list of push notifications’ functionality. What’s more, all of this reminder-updating-stuff is made on the background, without the need to constantly check the app. Push notifications example We offer you to learn how push notification works and more about mobile push notifications best practices by reading ‘ How to Implement Push Notifications for iOS and Android In React Native ’ article. 2. In-app messaging examples. How does in-app messaging work? This is another known solution among the various types of mobile app notifications. In-app messaging requires user’s in-app presence. Among widespread in-app messaging examples there could be different offers, marketing messages from app’s producer, account or personal info-related notifications, and the list goes on. At Apiko, we’ve dealt with the development of the Netherlands-based event management marketplace app, called Meals Unite. It’s (primarily) a mobile marketplace which allows you to arrange meal sessions by hosting your friends or complete strangers to meet the new people, right at your home. The product with such concept surely makes us get to know each other a bit closer via live communication and food culture. Currently, the app is available for Android devices. Try it out and . download Meals Unite from Google Play Take a look at how we’ve implemented in-app messaging examples mechanism in Meals Unite: App’s interface In-app notification What to pay attention to when comparing in-app notifications vs push notifications The truth to say, there’s no ‘better than this or that’ type of notification. What you need to know that such project details, like notifiers, should be in constant A/B testing. To make the most of the effectiveness from notifications, there are several tips to get going with: Apply the latest UX\UI design trends or create your own ones, Use UX copywriting approach Experiment and determine personal in-app messaging or mobile push notifications best practices. 3. Other kinds of notifications (text message notification system and email notification system) The current types of mobile app notifications might be considered as the secondary ones which emphasize on the important messages more intensively. We can enlist here: SMS alerts/ text messaging notifications. Such alerts might be helpful when it comes to the events planning, reminders or promos. As much as push notifications, this kind of notifier provides the user with a quick info on their status without the urge to directly interact with the app. Email notifications, just like SMS alerts, but being sent right to your mailbox. Email notification system, for the most part, is used for onboard messages, offers and polls a company sends over their customers’ database. Onboarding email as email notification In-app messaging, email notifications, and SMS alerts system. How to build notification system of 3-in-1 kind? (We deliberately haven’t mentioned here how push notification works. You can find an entire separate article on this kind of notifications already mentioned above) Let’s see how to create SMS, email and in-app notifications sending mechanism and its API organization. Below you can find end to end notification sender example (simplified). First, let’s define our notifications (can be stored as separate YAML or JSON file): Below we provided the possible code example for API localization: Now, let’s start notification sender implementation itself. First, we define our ways to send notification: Next, we should specify the relation between notification type and send methods that we will use: Now, we need to implement each send method (note: all functions share common interface): Finally, we can implement the main function which is responsible for sending notifications (it will be used by client code): Below you can find usage example of our new notification system: How can the given approach benefit the development of various types of mobile app notifications for your marketplace project? Single function call for multiple send methods Custom send methods per notification type Built-in localization Ability to render custom data (context) at notification text Easy to use — only 3 arguments to send a notification via multiple send methods. Let’s make the final bright. Tips on how to build notification system that is catchy There is no strictly determined rule what type of mobile app notification to implement. You can give a try to all 4 notification kinds mentioned in the article: push notifications, email notification system, text message notification system, and use in-app messaging best practices. Here are several tips on how to level up the customer engagement via notifications, before we’ll move to this article’s completion: Interact with user on more personalized level (to do this, and avoid sending senseless notifications, track their in-app activity and the way they’re utilizing your product) Let your notifications invoke emotions. Don’t create that obvious ‘you have 1 notification’ or ‘there’s a message for you to see’ update. The tip is to keep it short and at the same time as descriptive as possible with the hue of intrigue. Check out neat notifications examples compilation by Leanplum Too many notifications will turn your product into some kind of a promo app. Send only the most important updates and messages. Let user determine the priority of notifications and whether they would like to receive some of them at all Keep notifications simple in design and provide them with native look and feel. You certainly don’t want your customers and users to have this Lisa-Simpson-bored-face when using your marketplace app. The rule is — don’t overdo… Well, no explanations are needed. Summarizing all said above We hope that this article has shed some light on the notifications realm and . Here we’ve tried to answer such questions, as what mobile push notifications best practices are, how in-app messaging works, and how to create SMS alert system and email notification system. various types of mobile app notifications for marketplaces Originally published at apiko.com on February 22, 2018.

How to Build 3 Types of Mobile App Notifications For Your Marketplace?

: UPD: 2018 Q4 marketing version here https://hackernoon.com/what-should-your-ico-marketing-plan-look-like-in-q4-2018-9dd41908f358 The ICO era is currently in it’s rising phase, and each day the media talks about the latest news revolving around cryptocurrency. We are waiting for the top ICO from the company Telegram to become the biggest ICO in crypto history, as it will raise over $5 billion dollars. Thanks to for support in creating this topic (First platform with proven ICO contractors) agency.howtotoken.com At the end of 2017,the average number of ICO campaigns closed to three per day. There are a lot of unsuccessful ICOs out there that have failed to reach their soft cap (proven by confessions from some of the teams), so it is not as easy to make one now as it was back in 2017. So we could finally forget about “Garage ICOs” and become more serious about this form of fundraising. In terms of ICO marketing, the total budget for success is rising and so is the initial cost of investments. You must create a prototype and gain the approval from the communities and advisors if you want to succeed. The average cost for outsourcing ICO marketing to one of top agencies starts from around $280,000, not including the legal fees that run for about $20,000 In this article we will discuss the costs of starting an ICO this year. We will also include comments from agency experts and ad network owners. 1. ICO Listings Variant 1 — outsource to agency The cost: $25,000 What to expect: At least 10 popular ICO listings Paid options included Variant 2 — by yourself (you should include manager’s salary so he or she can send the information) The cost: ~$15,000 Top listings cost: — 0.02 BTC http://www.coinschedule.com/ — 0.3 BTC https://www.ico-list.com/ — Free, manually screened, up to 2 weeks https://tokenmarket.net/ — Free Icoalert.com — start from $10000 https://cointelegraph.com/ico-calendar ICO Rating Agencies There are special types of companies that could audit and rate your ICO for investors. You will receive a special report of investment attractiveness of your ICO and could be listed. — 1 BTC for report https://digrate.com/ — $20,000 for report https://icorating.com/ — Starts from 0.4 BTC https://icobench.com/ Optimum Strategy The best strategy will be to place your ICO on Coinschedule, get ratings from ICORating, Digrate, or any other rating service (it will help you to summarize leaks in your ICO), and start pushing FREE listings in order to place your ICO. Don’t forget that ICO ratings appear everyday as well as die everyday too. They start their ratings from parsing the top lists, so you could gain additional traffic that way as well. , Chief Business Development Officer : Brian Kean ICORating.com More importantly, the project should be well “packed.” All the materials (white paper, one-pager, web-site, etc.) should be composed in the language of the investors so that it will make the project more attractive to them. It is important to note that in 2018, investors into ICO will become more professional and there will be more players from the traditional financial market amongst them. Secondly, it is extremely important to build personalized relations with the investors: to contact them directly, to pitch them at a crypto event, to organize personal meeting with them. It is important to note that the information about the projects rated by ICORating is mailed to the list of funds,thus significantly raising their chances to be noticed. Generally, well developed relations with investors, and the agreements with them, ensures that at least the soft cap is collected during the ICO. , Strategy Head @ Merklion Agency: Yaroslav Lunev t.me/yardy Personally, I like ICObench and ICOdrops. These guys knows what they’re doing, and this is why more and more people trust them, a fact reflected in the traffic numbers. I remember them first starting out, having a good dialog with the audience right from the start. 2. Paid Advertising Variant 1 — outsource to agency (budget + work) The cost: from $150,000 What to expect: Facebook, Google, Twitter ad campaigns Specialized crypto ads buying Variant 2 — by yourself per month for ad managements + budget The cost: ~$3,000 Platforms to work with: Facebook, Google, Twitter ad campaigns Specialized crypto ads buying: — Minimum budget: $10,000 https://cointraffic.io/ — Minimum budget: 0.01 BTC https://coinad.com/ — Minimum budget: Any https://a-ads.com/ You can find more networks here: https://themerkle.com/top-7-bitcoin-advertising-networks/ — Bitcointalk updates thread with ad networks and scam alerts. https://bitcointalk.org/index.php?topic=1108616.0 Optimum Strategy Start with the channels that you have ad managers for. You can gain traction with traditional ad networks like Facebook and Google. Eventually you’ll be able to move onto specialized crypto networks a few days before your ICO and on the first days of sale. , Strategy Head @ Merklion Agency: Yaroslav Lunev t.me/yardy It is easier to find a Bitcoin on the street than a professional ad manager. Be sure that this person knows his or her craft. My advice is to go to an agency and work with them. And if you’re able to sell your idea to them, you may pay them with tokens, at least partially. But I’d hire an ad manager as well so that he or she could continue agency jobs in the post-token sale period. 3. Events This should be the main focus of your activity since this is where you can find and communicate with investors face to face to get your first capital. You should remember that crowd capital will come if you manage to raise the initial capital from the big league investors. : You can find the list of upcoming events in 2018 here https://www.coindesk.com/bitcoin-events/ https://www.coinschedule.com/#events Pay attention to these upcoming events as well: https://www.blockchainweek.com/ https://www.bitcoinsuperconference.com/ https://dubai.keynote.ae/# https://btcmiami.com/ http://arabcomgroup.com/DubaiCryptoexpo.com/ http://www.icosummitkazan.com/index.php https://blockchain-expo.com/europe/ https://blockchain-expo.com/northamerica/ Variant 1 — outsource to agency (tickets included) The cost: from $20,000 What to expect: Investor relations management. Variant 2 — by yourself (tickets to events in case of early buying) The cost: from $10,000 What to prepare for: You should be familiar with networking. Have a clear plan about your product and business that you raise your money for. Optimum Strategy Start with online communication early on, before meeting them. Try to build up your online relationships and send them the important information. Then work on your presentation before an event and try to make appointments before you go to it. Don’t forget to follow up. Fundraising is a continuous process that takes time. 4. PR and Media Outreach After you have all of your product descriptions and your site ready, you can start your public relations outreach. Below, we will discuss online activities. Variant 1 — outsource to agency The cost: from $50,000 What to expect: Up to two unique press releases distributed to major sites. Up to 5 articles published in the most popular blockchain media outlets. Variant 2 — by yourself Unpredictables (from $10,000 for publication in top-tier websites) The cost: What to prepare for: If you don’t have relationships with top-tier websites, it will be really hard to get the discount. You must be ready to generate quality content and distribute it. Try to work with companies like . They have packages for distributing press releases at attractive prices. http://bitcoinprbuzz.com/ Optimum Strategy Make sure that your main account has your high-quality content (a good example of an ICO where content marketing was on the main channel is Jincor). Outlets will be happy to publish good, analytical research content for free. Establish a budget of about $10,000 — $20,000 for top-tier publications and press release distribution. But if you have good content, you could go viral very fast. , Strategy Head @ Merklion Agency: Yaroslav Lunev t.me/yardy If you have good budget, a wise strategy would look something like this: 1) market research 2) list the countries where you will start promoting your project 3) find a local PR agency in every country (big agencies work with the whole regions of several countries) 4) your in-house PR manager will coordinate all of the activities. If you cannot do it this way, then try to create a Content Generation System by yourself, be warned, however, that this is not easy. 5. Specialized Forums and SMM Variant 1 — outsource to agency The cost: from $30,000 What to expect: SMM Work on forums such as Reddit and Bitcointalk Bounty campaign Variant 2 — by yourself The cost: ~$5,000 What to prepare for: You can hire good managers on Upwork. Try to find proven managers on Bitcointalk for both your bounty and signature campaign. The list of communities to keep in mind: Bitcointalk.com : (~ 84,000 subscribers), (~ 9,500 subscribers), (~ 2,600 readers), etc. Thematic subreddits /r/ethtrader/ /r/icocrypto /r/bancor/ : there are a lot of discussions here about , specific , and , in which you can actively participate in. Quora discussions different ICOs cryptocurrencies blockchains : there are several groups for any taste, each with thousands of players. Here are just a few: , , , , . LinkedIn professional groups one two three four five : issues of ICO, cryptocurrencies, and blockchains are also discussed on Facebook (for example: ). Facebook groups ICO, Funding, Angels, Seeds, Investors, Startups Optimum Strategy The main budget should go towards a good signature and bounty campaign. It is difficult to get good results from it and to manage the process, but there is a chance for success. 6. Native Ads — Tell The World About Your Product You should really consider this strategy if you have a low budget or a great product you want to tell world about. Agencies include this part in public relations, so here we will describe the variants on how you could make it on your own. Step 1 Create your content plan regarding your product and market. You should research the sites that you want to be published on, and try to research their top articles and editorial policy. Step 2 Create a detailed plan for each of your articles for the writer (you could be a writer by yourself). With this plan, try to ask questions that should be answered during the article and give links to sources where the writer could find the information. Step 3 Hire a great blockchain writer and proofreader on Upwork (the prices can start from $500 for 1,000 words from a good writer. Don’t hire cheap foreign writers, you will just end up wasting your time as well as your money). Step 4 Reach out to websites to publish your content. It can take time (for example, it could take up to a month after approval to get published in Entrepreneur.com). In most cases you don’t need specialized websites (but it helps because crypto investors read them all), you could simply publish on your niche websites. It will, however, be hard to explain to newbies how to invest in cryptocurrency. Hack 1: The main advantage of native articles is that they gain organic traffic from Google, thus you can start to see more traffic arrive to your ICO. Keep in mind that it’s better to start early, before your ICO. Hack 2: Try to realize the content strategy of the website that you want to publish on. If it’s a news or daily analytics website then your content will get shot down very quickly. Specialized companies to outsource to: (this is the top crypto website. They make native ads, but the price is very high and starts from $10,000). Cointelegraph.com (A crypto guides website. Project has a team of authors trained to create great product manuals that explain your product to crypto investors. The cost of writing and distributing to their audience costs up to $1,500. Contact for more information). Howtotoken.com team@howtotoken.com :-) Hacker Noon’s Weekly Sponsorship Package About the author: — Founder of Geekforge.io and Howtotoken.com. Interviewing the top 10,000 worldwide experts who reveal the biggest issues on the way to technological singularity. Join my . Kirill Shilov #10kqachallenge: GeekForge Formula

What should your ICO marketing plan look like in 2018?

Meteor 1.6 Meteor 1.6. is already here. team has tested it on practice and now we want to share these findings with you. Apiko Let’s dive right in! Main changes in Meteor 1.6. version A new, stable, and long term support version of NodeJS (migrated from 4.8.3 to 8.8.1). Reduced app size, because there is no need to use a lot of babel plugins (new node have already implemented a lot of ES 2017 features) Npm is upgraded to v5 — the fastest npm version at the moment. Native debugging feature (now, we can use Chrome devtools to run application in debug mode) Main advantages Updating to Meteor 1.6 is very easy. Just run meteor update and it’s done. There are no problems with updating common and most used packages (Mongo, accounts, etc) We have compared old and new Meteor while working on the current project. The results are the following. Meteor applications start much faster for development (on the example, the time is reduced by 20 seconds). Here is a comparison of npm package installation with npm v5 and yarn A comparison of project bundle size Possible issues Problems with package-lock There is an issue with package-lock file in npm 5 for 5.6.0. version. The problem is that different packages may be added to the operational systems, e.g. FSEvents on Mac OS.This package will be deleted as soon as the “Meteor npm install” is conducted. It leads to the conflicts while file merging with version control systems. However, in Meteor, npm will be renewed in 1.6.1 version, that’s why this can be ignored yet. Atmosphere packages are not fully compatible with Node V8. Not all Meteor packages on Atmosphere that use npm dependencies function well enough. It happens because of the rapid changes in Node versions. Some functions may be deleted from the updated version or the syntax may be partially changed. That’s why it will take some time until community will adapt its packages to updated Meteor. However, most of the frequently used packages are already adapted. In addition, you can directly use npm packages without Meteor-wrappers. Wrapping up We are so excited about new Meteor version and hope you feel the same. In case you share our tech passion to Meteor, these articles will come in handy for you. Email Sending Using Meteor JS: Implementation Process and Email Templates How to Build Telegram Chat Bot With Meteor Meteor Apps and Source Code examples Enjoy it and feel free to share with us your Meteor experience! Originally published at apiko.com on December 27, 2017.

Meteor 1.6. Review: Benefits, Issues, and Examples

Update: CoinsPH and Abra section is outdated. They already added other cryptocurrencies. There is a lot of hype about here in the Philippines. One of the topics from the last Devcon Summit (2017) was about Blockchain, which is the tech behind and other cryptocurrencies. cryptocurrency Bitcoin When I first got into cryptocurrency (around September 2017), I only held Bitcoin. And after the realization that it wasn’t practical to be used like money because of the high fees and slow processing, I got curious about other cryptocurrencies. The first that I added in my portfolio was Litecoin. It was called to be the silver to Bitcoin. The transaction fees were lower and the speed was a lot faster. I used ShapeShift to convert my Bitcoin in Coins.ph to my Litecoin address in Coinbase. I didn’t know any other means to do it at that time and it took a lot of effort to know how can I trade other cryptocurrencies. This post is divided into two: Buying/Selling and Trading. In these sections, I will give you an insight on the methods that I have already used. The goal of this is to help beginners in buying cryptocurrency in the Philippines and how to cash out. This will help you get started. I’m assuming that you already have some background about cryptocurrency and the only problem that remains is that you don’t know how and where to buy. The market of cryptocurrency is very volatile. Remember to only invest what you are willing to lose. Buying/Selling The options that are known to me is through , and . You can only buy and sell Bitcoin (BTC) and Ethereum (ETH) here in the Philippines. Abra Coins.ph, CEX.IO 1. Abra Website: https://www.abra.com/ Android: https://play.google.com/store/apps/details?id=com.plutus.wallet iOS: https://itunes.apple.com/ph/app/abra-bitcoin-wallet-buy-btc/id966301394 Abra is a bitcoin-based digital currency wallet. — Abra Website What you have in the Abra app is a , , and an . I will style in what I have used in the Abra app. PHP Balance Bitcoin Balance Ethereum Balance bold You have four options for your PHP Balance. — Using your bank account, you can add money to your PHP balance. What I have tried is to use my EON card from UnionBank. Depending on the amount you are trying to add, you might receive an email asking you to confirm your identity especially if it is a large amount. Add money — After I have my PHP balance loaded, what I do is exchange it to Bitcoin. You can exchange your PHP into Bitcoin or Ethereum here. . Exchange Before you exchange into Ethereum take note that Ethereum doesn’t have an option to Send/Withdraw Send or receive — You can send funds to an Abra user or from your phone contact. Withdraw — option in withdraw allows your money to be added in your Bank Account. I haven’t used this to withdraw (I use CEX.IO to withdraw) but I’d say that it works since my friends are using this method to cash out. Transfer to Bank Bitcoin Balance You also have four options for your Bitcoin Balance. Buy Bitcoin — from PHP Balance and from Bitcoin Balance has the same user interface. Add Money Buy Bitcoin Exchange — from PHP Balance and from Bitcoin Balance has also the same user interface. You can convert your Bitcoin to PHP and Ethereum here. Exchange Exchange Send or receive — It has the same user interface for PHP Balance. — If you want to send your Bitcoin to an external Bitcoin address, i.e. not Abra, you can do it here. This is what I use to transfer my Bitcoin to another exchange like Poloniex, Binance, and Kucoin where I trade my cryptocurrencies. Withdraw You can only exchange your Ethereum. It means that you can’t send and receive from an Ethereum external address, i.e. not Abra. You can’t also withdraw it directly to your bank account. Summary of how I use Abra: to PHP Balance using my EON card from UnionBank. I’m using UnionBank’s app: . Pay Bills -> Select Biller (Abra) -> Enter Biller Information (mobile number) -> Choose account to use for payment -> Enter Amount -> Review and Send Payment. Add Money UnionBank Online I blurred out my account number, mobile number, and amount for obvious reasons. 2. PHP to Bitcoin. Exchange 3. Bitcoin and send it to Poloniex/Binance/Kucoin. Withdraw I don’t let my balance sit in Abra. I just use it to buy Bitcoin that I can send in Poloniex, Binance, or Kucoin where I can trade for the cryptocurrency that I like. 2. Coins.ph * I’m including my referral link Website: https://coins.ph/invite/wd8fx7 Android: https://play.google.com/store/apps/details?id=asia.coins.mobile iOS: https://itunes.apple.com/us/app/coins-ph-load-bills-bitcoin/id972324049 If you want to register and you feel kind today, you can use my referral link: https://coins.ph/invite/wd8fx7 My Referral Code: wd8fx7 Save money and time on everyday services like bills and prepaid load. You can even start buying and selling bitcoin! — Coins.ph Website Coins.ph has features other than buying and selling Bitcoin if compared to Abra. As said in their website, you can use it for bills payment and prepaid load. You will have a and . The limits on how much you can cash in and cash out depends on your account verification. Peso Wallet Bitcoin Wallet Peso Wallet Bitcoin Wallet (I have some 41 PHP left. I was not able to transfer everything because Bitcoin’s price is actively moving. Haha) Cash in To be able to load up your account via fiat currency, you need to cash in. You have a lot of options on how you can cash in. What I have used is their UnionBank option where they will present you the details of the account you have to deposit to. Cash in using Coins.ph is more flexible than Abra. Here are all the options you can choose from: Convert After you were able to cash in, you can now convert to and from your Peso wallet and Bitcoin wallet. Cash out If you want to withdraw from your wallet back to fiat currency, what you need to use is cash out. Cash out is also more flexible in Coins.ph than in Abra. Here are your options: Limits and Verifications Here are the limits depending on your state in verification: Summary of how I use Coins.ph: My account is not verified here since I use Abra more often. Again, I use my EON card from UnionBank. Though I haven’t used this to cash out, it should work fine. Same as in Abra, some of my friends use this method to cash out. I guess we have different tastes. 3. CEX.IO * I’m including my referral link Website: https://cex.io/r/0/up115119371/0/ Android: https://play.google.com/store/apps/details?id=io.cex.app.prod iOS: https://itunes.apple.com/us/app/cex-io-bitcoin-exchange/id1047225016 If you want to register and you feel kind today, you can use my referral link: https://cex.io/r/0/up115119371/0/ BITCOIN EXCHANGE YOU CAN TRUST — CEX.IO Website so my EON card from UnionBank works. I have used it to deposit and withdraw. I mainly use this method to withdraw because you have more cryptocurrency options you can send here. VISA works in CEX.IO Warning: You can use PayMaya in CEX.IO to deposit but withdraw doesn’t work. You can read the conditions for VISA withdrawals here (PLEASE READ): . TLDR: the important to note here is that There is also a list of restricted countries and Philippines is not included in the list. So if you are reading this post even if this is meant for Philippines only, please do check your country here first: . https://blog.cex.io/news/visa-withdrawals-16897 if you want to withdraw USD, you have to fund your CEX.IO account with minimum 20 USD. https://cex.io/finance/limits-commissions#/direction/withdrawal You will have a and a in CEX.IO. Fiat Balance Crypto Balance You can see below that there is no PHP for fiat. Though there is no PHP in the list, you can deposit to your fiat balance using your VISA. I’m using USD. Your crypto balance here is a lot more compared to Abra and Coins.ph. After trading, I use CEX.IO to withdraw since I don’t want to go through the transaction fee of Bitcoin for transferring back to Abra and Coins.ph. Summary of how I use CEX.IO: I only use CEX.IO to convert back to fiat (USD) and withdraw. What I do is go through Ripple (XRP) since the transaction fee is lower. From Poloniex, Binance, or Kucoin, I will convert my cryptocurrency to XRP. Send my XRP from another exchange to my XRP in CEX.IO. Trade XRP to BTC in CEX.IO, since you can’t cash out XRP directly. Sell converted BTC in CEX.IO to USD. Withdraw USD using VISA card. Trading the act of buying, selling, or exchanging There are lots of other cryptocurrencies, e.g. Ripple (XRP), Stellar Lumens (XLM), Litecoin (LTC). You can view the top cryptocurrencies at . https://coinmarketcap.com/ If you want to hold different cryptocurrencies that does not exist in Abra, Coins.ph, or CEX.IO, you have two options. You can use to convert your cryptocurrency to another one or send your cryptocurrency to your account in a trading platform then exchange it there. I have only used , , and for trading but you have a lot of options here. I’ll only discuss these three since that is what I have tried to deposit and withdraw with. ShapeShift https://shapeshift.io/ Poloniex Binance Kucoin Though you can’t withdraw directly to fiat currency, you can send your cryptocurrency back to Abra, Coins.ph, or CEX.IO and exchange it into fiat. I recommend that you use CEX.IO to withdraw since they have more cryptocurrency options you can deposit to. If you want to use Abra and Coins.ph to withdraw, your only option is to go through Bitcoin which will take a huge cost on the transaction fee. I’ll repeat this, The exchange that you are using might be down for a reason you can’t control and you might lose your money. only invest what you are willing to lose. 1. Poloniex No official app No official app Website: https://poloniex.com/ Android: iOS: We are a US-based digital asset exchange offering maximum security and advanced trading features. — Poloniex Website Poloniex is the first that I used for trading. First, verify your account after registration. You will be asked to take a picture with an ID then you have to wait until they verify it. If you don’t like that, use Binance. It has a withdrawal limit of 2 BTC even if not verified. After getting verified in Poloniex, this will appear in your Profile. Withdrawal limit: $25,000 USD equivalent per day How to I load up my account? To transfer the Bitcoin that you bought in Abra or Coins.ph, you need your . . To get your Bitcoin Address in Poloniex, go to:BALANCES → DEPOSITS & WITHDRAWALS → Search for Bitcoin and Click Deposit Bitcoin Address Remember that this will require a transaction fee so don’t expect that you will get the same amount that you transferred After you get your Bitcoin Address in Poloniex, you can now send your Bitcoin from Abra or Coins.ph. How do I buy and sell other cryptocurrencies? So now you already have Bitcoin in Poloniex. You can begin trading by going to the EXCHANGE tab. If you are confused with what you are seeing, which is my first impression too, I recommend that you start by trading in the USDT tab. USDT is a cryptocurrency that claims to be a tether to USD, which means that 1USD=1USDT. Click BTC under the USDT tab in the MARKETS section. Scroll down below and you will see this: For a start, you might only want to use BUY and SELL here. To sell your BTC for USDT, you need to use the third box which says SELL BTC. Click the amount that is underlined beside BTC. The Price, Amount, and Total will be automatically filled if you do that. This means that you want to sell your BTC for USDT at the price that is indicated. Click sell to proceed. Take note that your sell order might not be filled right away because the market is actively moving the price. If that happens, scroll down and go to MY OPEN ORDERS. It will be listed there if it is not yet completed. You can wait for it or cancel it then try again for the most recent price. After you are done converting your BTC to USDT, you can now buy other cryptocurrencies in the USDT tab. How do I withdraw? To transfer your cryptocurrency from Poloniex to other exchanges like Abra, Coins.ph, and CEX.IO where you can convert to fiat, go to:BALANCES → DEPOSITS & WITHDRAWALS → Search for the cryptocurrency that you want to withdraw then Click Withdraw. 2. Binance * I’m including my referral link It is not available on App Store but they have an app that is distributed for enterprise. I’m an iOS developer and I can say that this is an official app. iOS apps can be distributed this way. Follow the instructions here: Website: https://www.binance.com/?ref=13335816 Android: https://play.google.com/store/apps/details?id=com.binance.dev iOS: https://support.binance.com/hc/en-us/articles/115001507811-How-to-Install-Binance-iOS-APP If you want to register and you feel kind today, you can use my referral link: https://www.binance.com/?ref=13335816 My Referral ID: 13335816 You can buy other cryptocurrencies in Binance that are not in Poloniex. After you register, you will have: 24h Withdrawal Limit：2BTC You can verify your account to increase your limit. Like in Poloniex, you can buy and sell in the Exchange tab. I recommend this since it has an Android and iOS app and you have more options to buy and sell with. 3. Kucoin * I’m including my referral link No official app No official app Website: https://www.kucoin.com/#/?r=7Qv2dN Android: iOS: My Invitation Code: 7Qv2dN I just recently used Kucoin. Most of the cryptocurrency that I can’t find in Poloniex and Binance is here which is great! If you were able to navigate through Poloniex and Binance, you should be fine using Kucoin. To summarize how I do everything: Buy Bitcoin in Abra or Coins.ph. Send bought Bitcoin to Poloniex, Binance, or Kucoin. Trade. Buy. Sell. Wait. Convert to cryptocurrency available in CEX.IO. Send cryptocurrency in CEX.IO. Trade cryptocurrency in CEX.IO to Bitcoin. Convert Bitcoin in CEX.IO to USD. Withdraw USD using my VISA card. Here I added some tips and answers to frequently asked questions to help you keep going. Everyone is active in Reddit! . Usually a cryptocurrency has its own subreddit. As a start, you can follow this subreddit: Where can I follow the cryptocurrency community? https://www.reddit.com/ https://www.reddit.com/r/CryptoMarkets/ We haven’t talked about cold storage in this post but it is the safest that you can use. I don’t want to hold my cryptocurrency in an exchange, where is the most secure place that I can store it? You are responsible for your money! I’d say that don’t put in what you are not willing to lose. Yes, it could double fast but it can crash like crazy too. How much should I invest in cryptocurrency? Research and find the cryptocurrency that you believe in. No one can predict the market. In what cryptocurrency should I invest? This one is important. If your password has been compromised, two-factor authentication will save you. You will be given a code which you have to keep in safe place. Write it down. You will need this code for Google Authenticator. This will allow Google Authenticator to generate a password that changes every 30 seconds. It will be an added layer of security for your account. If you enable this, you will be asked for your password and the generated password from Google Authenticator whenever you login. Most trading platforms are recommending Two-Factor Authentication, why should I use it and what is Google Authenticator? I you feel generous and want to thank me for this post, you can always send me some cryptocurrency. Here are some of my address: Litecoin (LTC): LQxfn7UJY3Y9vzNfep2uMd59zaS6mZBHHV Bitcoin (BTC): 1DLA1yqsUH8Fy2aQwjSCxucUt4iMk34WyE Ethereum (ETH): 0x61c4ae6c411d80995ab98cca4966ca8fa2e8516b Thanks! 😄 😄 😄 PS: The methods that were listed here are those that I have already tried myself and is still working at the time of writing. Always be careful with the address when sending. There is no bank to call and blame here and you can’t revert a transaction. Sending to an invalid address is like burning your money to ashes. You are responsible for your money and trades. If you can’t be like that, don’t invest in this volatile market. Good luck and happy trading! 😎 😎 😎

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