To survive, you must simultaneously increase sales and reduce costs. Apply growth marketing - quick, easy, free, and low-budget techniques for explosive business growth. Growth marketing will enable you to survive and maintain sales by rebuilding your business to meet your customer's needs in a crisis. With the growth approach, marketing is no longer focused on the top of the marketing funnel. Growth hacking is the most advanced online startups, such as those involved in fintech and mobile apps, often look for growth hackers.