Ad Free doesn't remove the ads, you'll just run into less random ads when you unlock tiles. I tried contacting the developer, but never got a response (after days). You get tickets for the resource ads after purchasing ad free (30), but they run out. The resource ads now show at times 3 ads to get the resources. It's a fun grind game, but it has major issues with ads that is ruining the game. This review has been removed 6 times.