password protecting Google Play purchases? Or would that suffice? If so, google how to do that.
by clearing the storage for the Google Play Store app. Unbelievable how easy it is.
in order to purchase apps. I don't know if it would work, because I have never set it. I don't know if it would require the password for free apps, either.
I do apologize if what I am describing is exactly what you are saying is easy to circumvent.
It locks down the settings as well as any app you want to password protect.