Use Wallpaper App Creator to make background app for Android today. Share your HD images with the mobile world. This app shows albums of your images that can be set as wallpaper. You can create an app with your own images or images from online albums. Upload multiple backgrounds or enter any popular topic in Album name field using Online albums.

Tip: want to find niche for your app? Try making app for your social group/language. If you know several languages, use less popular one. Targeting small groups of people cam make your app a lot more popular. You'll be able to find niches that are free from huge players on app market and make a great app for your social group.