Crashes on level 10
Meanwhile the music (which in spite of starting off melancholy, is quite good) quickly keeps playing during the ads. That’s just annoying.
On the other hand, I really like that the game has separate categories for shape and math puzzles, which I find really are quite different challenges. And I do like the music. If the bugs get fixed, this will be a keeper. I just want to keep playing past level 10!