Based on materials from androidcentral.com
App developers for Android have been advised that starting January 11, 2016, they must report if there are ads in their apps. This is currently required for apps that are supposed to be listed in the Designed for Families category on Google Play. But from the beginning of next year, all apps need to indicate whether they contain ads.
The interesting thing is that the question arises, what is considered advertising. For this reason, Google has included the categories 'third-party ad, on-screen ads, in-app ads, and / or banner ads'. Sponsored articles also fit this filter. Google says that feed ads are included as well as other in-app ads.
Google will be engaged in checks on this issue. If you claim your app is ad-free, Google will run a quick SDK check for your app and rate you accordingly.
It will be interesting how users will react to this and how the download rating will drop in this regard. For example, the app Android Central does not contain anything that we would consider an advertisement. From time to time, screenshots with ads appear in it, which is not considered in the order of things, plus there are various options for your own content. But if you ask if there are ads in our application, you can probably answer in the negative, because in the usual sense it is not. But that's the case when you take Google's standards into account.