4k Wallpapers - UHD Background is a free Android app developed by Teamvin in the Personalization category. The app provides a collection of more than 10,000 unique and top-quality 4K wallpapers and full HD wallpapers to choose from. The app is designed to make your device a source of self-expression, joy, inspiration, and HD.

The app has a simple and fast user interface that focuses on performance and battery efficiency. One of the app's most remarkable features is the auto wallpaper changer, which allows you to automatically change your mobile desktop background. You can choose the time frequency to change wallpapers automatically, or you can select any image directory of photos and wallpapers. Finally, you can set the time duration between two wallpapers (default time: 15 min) and enjoy the app's wallpapers.