Too Long; Didn't Read
Many companies give their product to consumers for free. How are they making money if they do not charge for their product? Freemium is getting basic features for free, then paying to upgrade for access to the full product. Free apps might offer users the option to pay to not see ads. The ads model that apps use is Pay Per Click. This means that every time someone clicks on an ad in the app, they get paid. Once the app gets 1,000 clicks, they will get paid by the service that hosts the ads.