2022 DO NOT PLAY OR PURCHASE ANYTHING, this game has an saving feature that will delete all your boosters randomly for no reason at all. It doesn't matter if you earn for free or buy gold bars to buy boosters, if the app closes or you get a phone call or anything that happens could make your game delete all your boosters then autosave. I emailed them multiple times and all the answers was the same, either they can't help me or they can't return boosters or gold bars. It's an scam so BE WARNED