A free app for Android, by Appgeneration - Radio Podcasts Games.
This simple yet challenging puzzle game will help you train your brain. The rules are very easy: Just tap to pour the water from one tube to another. It's that simple!
You will find yourself arranging the watercolors in the tubes, trying to get each tube to be filled with a different watercolor. And it's not just a simple puzzle game. There are lots of levels, with increasing difficulty, and you can always restart the level at any time.
The game is free to play, but in-app purchases are available. If you like the game, please consider donating to support the developer.