3D Wallpaper: Live Backgrounds is a great app to download and set on your phone screen as a background or home screen. The 3D wallpapers in this app are high-quality, and there are many categories to choose from. There are many different themes, and each one has a unique design. You can also set it as a lock screen or home screen background. The 3D wallpaper is very easy to use. Just download it from the Google Play Store and open it. It is very easy to use, and you don't have to do anything else. It is ready to be set as a background on your phone.