WallKing is a free Android app that allows users to upload their own HD wallpapers for use on their mobile phones. The application can be used as a tool for personalizing the home screen of your mobile device and can also be used to upload and download high-quality wallpapers.

The user interface of the application is simple and intuitive and the app is very easy to use. It allows users to upload their own wallpapers or select from a list of popular categories. Once the images have been uploaded, users can download them and use them on their mobile phones.