Very addictive... But in fact I had like a month of progress with the goal of making full idle level in every app but it was suddenly erased (withouth erasing cache of anything). I´m very sad, and there is no way I will achieve that progress again.
2021 update: I was young, and dumb. I could not value the amount of work put into this and the good time I had while playing it. I will try again and see how it goes.