gameplay 5 star: great game for kids. But lost a star for technical and sound related issues: sound: most irritating, relentless and never changing millenial banjo whistle, and when turned off the sound effects are turned off as well :( When sound is turned off because you don't want sound, the ads still play at full volume. technical: you can't go back in levels (or at least not in an obvious way that I could find) so the lower levels you test before letting your child play the game, are gone.

Can't purchase ad free version. I'm tired of my kid having to watch an ad after each puzzle. I'm more than happy to purchase a no ads version. It says "in-app purchases" but there is no option to that on the Play Store or in game, and no way to change the game settings of any kind.

Seems repetitive. Pictures are shown a few times and most, if not all of the differences are the same when they do repeat. On quite a few levels there's actually more things wrong than they allow to mark. Spotting the differences is easy and the levels don't seem to get harder the higher it goes like I expected it would. The pictures themselves are not of great quality. Pretty boring overall