There's nothing more boring than a default background or lock screen. This list will help you find the best wallpaper app for iPhone or iPad, with links to download your favorite from the Apple App Store. Want HD pics and graphics for your smartphone screen? Or are you looking to customize your iPhone theme with cool live backgrounds in eye-popping colors? This list includes the top rated wallpaper apps made of hi-def photos and images. Each offers multiple categories and options so you can create a truly unique look to your mobile device.What are the biggest, most versatile background apps for iOS? These awesome galleries offer vivid colors, cool glow effects, and other features for cool phone skins. The highest rated wallpaper apps in the App Store even allow users to add text, frames, and stickers to their high-definition photographs and pics. This list ranks the top rated free online background apps as well as those paid apps that offer in-app purchases. One app even displays more or each image as you tilt your screen, and another lets you share your custom skins on Tumblr and Pinterest! Vote up your favorite mobile wallpaper apps to see them move up the list.