This is the app called Franco Kernel Manager, one of the best kernel managers that are out there... Even when it was outdated (which I think that's the cause it got booted from the PlayStore?).
I used it to check the process of my phone and monitor the active and idle drain mostly, I paid for it a long time ago, but now it just fails to check the licence and it doesn't let me use it fully... I think there must be a cracked APK over there...
EDIT:
Fortunately the app is back in the store and hopefully that update version comes soon enough!
This gets into a weird debate about the difference between reproducing a thing and describing a thing. With sufficiently accurate description you can create a reproduction.
And when you take that into the realm of computing, where we've functionally automated the process of describing things with extreme accuracy it gets really blurry. But we can all agree that "take what you want, give nothing back" is not a good way to run a society, least of all an economy :D
So we're left with the task of crafting internally consistent legislation that attempts to allow certain types of reproductions, but not others.
The thing is, this is the type of debate just should be happening at the administrative level, in Congress, etc. But instead, special interest groups and lobbyists are doing the legislating on this stuff.