DiffWallpaper is an Android personalization app developed by NibblerCodes. This free app allows you to set different wallpapers for each of your five Android desktops. The app provides an option to select images from your gallery and cut them according to the device resolution. The app is designed to consume low memory and processor usage.

For the proper functioning of the app, it is recommended to perform a calibration after setting DiffWallpaper as your desktop background. It is recommended to close the Settings window by clicking "Exit" or "Back" to avoid stopping the settings activity with interactive wallpaper service.

Overall, DiffWallpaper is a simple and effective app for those who want to customize their Android desktops with different wallpapers. Its low memory and processor usage make it a great option for those with older devices.