I loked it once; I'm a premium member, but it doesn't continue to run while your phone isn't with the app open. It's a waste of money. Taken me months just to get 20k coin, which is like 12$ ridiculous. And it charges you every money. No other mining app does that, once had 4 starts now i wish I could give it 0. If ran correctly; I would have 100x the amount of coin I do. Basically a rip off. Fix that; make the coins ine lost right. .38 coin in background is am insult after 24 hours.