By 2016 Google Play Store will tell you if any app has ads

“Android developers today are being notified that they need to declare by Jan. 11, 2016, whether their applications have ads in them or not. This currently is a requirement only for apps that want to be included in Google’s “Designed for Families” category in Google Play. But starting early next year all applications will have to declare whether they include advertising.”

Full Article at: http://www.androidcentral.com/google-play-store-2016-will-tell-you-whether-app-has-ads