Only admob
Not merging adsense and admob, only shows admob info.
Yes, MyAD is completely free and it doesn't have any in-app purchases or subscriptions.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
MyAD is free.
To get estimated revenue of MyAD app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.
Not merging adsense and admob, only shows admob info.