A free app for Android, by Lion Cube Studio.

Ball Sort Puzzle – Bubble Sort Color Puzzle Game is an exciting casual game where you have to sort a collection of colored balls in a tube. If you are a fan of puzzle games, you will surely love this one. The gameplay is very simple and intuitive, so even kids can easily get the hang of it. There are different levels of difficulty, so you can play at your own pace.

The gameplay

You will have to pick a ball and put it in the tube. When all the tubes match with the same balls, the level will be clear. You will need to use your skills to get the best score.