How much do you pay for advertising in Android Applications?
It is important that you know that both the AppStore and Google Play will keep 30% of the payment for the App. This means that, for each user who pays for the App, the markets will take 30%.
Imagine that you sell your Android App for € 1. The developer will only receive about 70 cents for each of the downloads. While the market will always receive 30 cents for each download.