According to a new report from Distimo, in-app purchases remain an incredibly successful way of monetizing in the App Store. While in-app purchases in the United States were responsible for just half of iPhone App Store revenue in January 2012, that number has climbed significantly to 76 percent in February of 2013.
That means the majority of app revenue, both from the iPhone and the iPad, is now coming from the purchase of in-app items and currency. This is immediately evident in the App Store with a simple look at the apps that are earning the most money. On the list of Top Grossing iPad Apps, 19 of the top 20 are free apps. Of those 19 apps, 15 of them are freemium games such as Candy Crush Saga, Clash of Clans, and Megapolis.