I got this game for my 4year old and so far so good. I think the option to have sound effects would really make this game better. I'll update review after a couple of weeks.
My kind of puzzle love it
I've tried some of the other games like this but they are too easy or the ads are too annoying. This app has 3500 levels and the complexity is much greater. I like the intuitive interface. This game is definitely worth the cost.