Wurm is a universal app available for your iOS devices that lets you generate random colorful patterns on the screen with you fingers.

There’s not much in the app, really. Select the source shape for the pattern and set the tilt, transparency and other factors, then select the color scheme of your choice and then let your fingers run crazy on the screen. The app supports multi-touch, so move your fingers around as you want. Wurm turns these gestures into beautiful, colorful, at times even stunning pieces of art. There’s a variety of shapes and colors to choose from, so there’s nothing stopping the creative mind.

Wurm turned out to be a fantastic and surprisingly addictive tool on my recent journey to the capital city. The two tiny toddlers with me were quite amused and curious at how their fingers were magically emitting colors on the glass.

Wurm is available for just $1.99 on the App Store.