Apple's App Store uses in-app purchases to help developers increase their income by giving away the app, then charging for premium contents. Amazon's Appstore in now following Apple's example by offering in-app purchasing for its cheaper Kindle Fire and other Android mobil devices.
Here is what Amazon says about its new in-app purchasing model: Amazon.com, Inc. now offers in-app purchasing, making it easier for Amazon Appstore developers to offer digital content and subscriptions for purchase within apps and games that are available on millions of Kindle Fires and other Android devices.
Amazon Appstore's In-App Purchasing service is simple for developers to integrate and helps monetize their apps and games, while offering customers a seamless and secure 1-Click purchasing experience. Top developers including ZeptoLab, Disney, Glu Mobile Inc., Storm8, Social Gaming Network, Gameloft, G5 Entertainment Inc., and top publishers like Condé Nast, The Wall Street Journal and New York Post, have already integrated Amazon Appstore's In-App Purchasing API and are offering millions of Amazon customers in-app content and subscriptions.
The Amazon Appstore for Android is where customers can find, discover and buy thousands of apps using Amazon's convenient and trusted shopping features, including personalized recommendations, customer reviews and bestseller lists. Customers can access the store directly on Kindle Fire, from any computer, or on an Android phone or tablet. Amazon Appstore has a broad selection of paid and free apps and games, including established bestsellers and new apps from top-tier brands. More apps and games are added daily and the Amazon Appstore offers customers a great paid app for free, every day.