I get that a game can't be totally free and ads offset that, but having an ad play after every single level? That's nuts. I installed it after the third level.
Maybe after every 5?
Already online apps.apple.com/fr/app/unblock-ball-block-puzzle/id1461045706
You can buy the source so it's only here for the ads after each level
sellmyapp.com/downloads/unroll-ball-slide-puzzle