A free app for Android, by Happy Pixel Team.

Happy Paint is a simple coloring game that helps relieve stress, get a good night’s sleep, and improve your mental health. This new coloring game is specially designed for people who are looking for a way to get their mind off of things for a little while, and it works really well for that purpose.

The way that it works is that you’re given a number and you have to put the corresponding color on the number. There are different numbers and colors and it’s very simple to play.