A free program for Android, by Eggies.

Are you one of those people who find great pleasure in playing puzzles? If so, you should check out this free and entertaining puzzle game. In it, you will be able to play over 500 different color puzzles, distributed in 5 expertise levels, and a total of 200 discs to unlock. It is designed to offer a relaxing and meditative experience that will improve your IQ.

The way it works is very simple. You must tap the discs in order to rotate them, and thereby match the slices of color with neighboring ones. If you get a pattern, you will get points. You can use those points to solve the puzzle or skip to the next one.