5 stars: Wonderful, fun, beautiful and simple colour puzzles that enhance your actual colour perception. The only two downsides is that I would love to try the last levels before having to play so many before them, so it becomes a bit of a grind for me to get there, but the increments in difficulty are subtle and good, helping prepare you for your way there, which is great. The other thing is that sometimes it's hard to compare colours because you cover them with your finger. But hey, it's a touch screen game with small tiles, so what can you expect? Overall a fantastic game!
5 stars: i downloaded this app because i saw my friend playing it and thought it would be good to train my eyes and help with my art. as an unexpected bonus, i found it a huge help with my anxiety. the game is very simple and peaceful, requires focus, and has beautiful visuals, with cute praise when you complete a level. the minute i feel an anxiety attack, i open this app right away. ended up putting a bit of money towards it to get rid of ads and because i love it so much. worth it.
5 stars: My only complaint is that sometimes scrolling between levels is a bit difficult. I'll mean to scroll up to bring up my phone's home button (I have soft keys rather than hard ones), but the game will interpret that motion as rapid scrolling. Swiping left and right seems to lead to low scrolling, in my experience. But it's a minor quibble about a great game. It's beautiful, easy to learn and yet engaging, so...