Define “earning apps” (for Android).
Is there an overview of this? If so, post this. If not, create such an overview (flow chart, like I did in my guide “Some basics on Android storage”, here).
Of course it is a lot of work to create such an overview (no one knows that better than me). But it would be very helpful not only for me but for everyone. By the way, I’ve never made an app that contains ads and I never will. But I would still like to know what options there are in principle that are also permitted in the Play Store.
Note: All my (Android & iOS) apps in the Play Store or App Store (Apple) are paid apps.