Color Hole is a free puzzle game available on Android developed by Alsancak Yazilim. It falls under the subcategory of educational games and provides a fun way to exercise your brain.

In this game, the player's goal is to move a colored ball around a board and collect all the other colored balls by absorbing them into a black hole. The challenge lies in avoiding balls of the same color as the hole since they cannot be absorbed. The game has multiple levels, and as you progress, the difficulty increases. The graphics are simple yet colorful, and the game mechanics are easy to understand.

Overall, Color Hole is an addictive and challenging game that is perfect for people who enjoy puzzle games. It's free to download, and the absence of ads makes it a great choice for casual gamers.