Random Wallpaper is a free personalization app by Truong Tuan that lets you set random wallpapers on your mobile home and menu screen. This app has a unique concept that allows you to use your favorite wallpaper set and specify a specific directory from where the app fetches images. You can choose to fit, fill, or set the original wallpaper size according to your preference. Additionally, you can set the time interval for the wallpaper to change automatically.

The app is easy to use and has a simple interface that is accessible to everyone. The app also offers a wide range of customization options, making it easy to personalize your device. Overall, Random Wallpaper is an excellent app for those who like to keep their device's wallpaper fresh and exciting.