There are three common options for monetizing an app – asking customers to pay upfront, hoping customers will buy upgrades, and ad revenue.
Amazon is now giving Android developers a third option – a 6% commission on sales that come in through their app.
The Mobile Associates API for Kindle Fire and other Android devices, allows developers to sell almost anything Amazon carries from inside an app. Amazon Prime customers will get their free shipping and everyone can use the 1-Click system to buy. That means the customer doesn’t have to deal with lengthy check-out procedures on their phone. Since their credit card and shipping information is already locked into Amazon’s system, 1 click is all it takes to spend anywhere from $5 to $500.