5 stars: It's a fun, addictive game. Great variety of pictures to suit everyone. Nice, simple game to play if/when you need your brain for something else. There are no ads if you pay to disable them. The game doesn't crash anymore. There are some puzzles with colours so pale that it's hard to see them but most pictures are bright & colourful. Still fun, relaxing app.
5 stars: Thoroughly enjoy this app. Calms me down and relaxes me. I don't mind following the colours given. I like that I can save the pictures after and the animation is fun to watch. Update: still love this app. I have tried others, but uninstalled them and came back. Just one small suggestion: please add some more simple drawings; quite a few are too intricate for me.
3 stars: Needs double-tap-hold support for single-finger zoom controls. Wish we had a way to set the colours in order, as in a gradual increase in darkness, or reverse, or at least the same hues set together and not have the numbers switch from one color then back then switch again. (yes I know I can pick and chose manually, but that's not the same).
3 stars: Pretty fun, but there's an ad everytime you leave the coloring screen. It's a little overwhelming. Edit: I am aware that there is an option to remove ads, but jeez Louise, it's $13.79. I would pay 6 or 7 dollars at most. I would never expect such a quality app to be free, but I can't fathom paying just under $14. I realize I'm probably in the minority, and I'm ok with that. Great...