Quads Live Wallpaper is a free personalization app for Android devices that adds a dynamic and colorful touch to your home screen. Developed by Kaj Bjurman, this app draws quads/lines that support color cycling, random movements, and a PS3-looking mode. It also allows you to double tap to generate new random lines for added variety.

To install Quads Live Wallpaper, simply long-press on your home screen and select wallpapers, live wallpapers. However, it's important to note that your phone must support live wallpapers in order to use this app. If it doesn't, this app is not for you.

Overall, Quads Live Wallpaper is a fun and visually appealing addition to any Android device. Its colorful and dynamic quads/lines make for an interesting and unique home screen background.