[stevenwei]

These numbers are heavily skewed by the fact that the Top 200 on both iOS and Android are dominated by IAP based games. E.g. Candy Crush Saga and Clash of Clans are not significantly different on iOS vs Android, and that is where the narrowing gap is coming from.

But for independent app developers (particularly those making paid apps), the numbers that I've seen from many folks (and also from personal experience) are strongly weighted towards iOS. Every single developer I've talked to who has released an app on iOS and Android has come to the same conclusion: Android users simply don't pay for apps.