Rainbow lock screen is such a colorful zipper app that you will certainly love it. It looks amazing on phone screens and the unzipping effect is very satisfying. Would you like to unlock your phone in a really unique and customizable way? With our new Rainbow lock screen, you have the option to choose your own wallpaper for the locker screen and for your device background. Also change the zipper style, color, and design with just a simple click until you find the best combination that works for