When you exit the game you lose every thing . All progress restarts. Takes a while to get going which isn’t bad but you can’t escape the game. Would be a nice game if you kept progress

So played this for a good 20-30 minutes then shut the game off for an hour. I come back to all of my progress gone and one of the beginner buy options/upgrades having completely disappeared. I dropped it after that. On top of that progression is a bit on the slower side, but no ads so that’s a plus.