Fluid Paint for Android is a free physics simulation app for Android smartphones and tablets, which allows you to interact with colorful liquid stuff. Besides, an interactive fluid wallpaper is offered, where you can set the background color of the screen, as well as the color of the liquid. By tapping the screen, you can then start the injection of the liquid, which will then spread throughout the wall.

The app also offers the possibility to paint the walls, which act as solid obstacles. If you touch the screen, a new color will then appear, and you will then be able to start the painting of the wall.