Android Developers :: We launched In-app Billing on Google Play a year ago to give developers more ways to sell and engage users over the lifetime of their apps. Since the launch, In-app Billing has been extremely successful in helping developers monetize their apps through try-and-buy, virtual goods, upgrades, and other popular business models. Today, 23 of the 24 top-grossing apps in Google Play use In-app Billing, and the total revenue generated from in-app purchases exceeds revenue from traditional app purchases.
We’re now taking In-app Billing further by adding another important business model — subscriptions.
HT: Drew Olanoff, The Next Web
Continue to read Dirk Dougherty, android-developers.blogspot.de