FUI v21 is a futuristic KLWP theme designed by Dessy Dwi Diyanto for Android users who want to customize their device's interface. It is not a stand-alone application but a preset for KLWP Live Wallpaper Pro Key. This theme supports different screen ratios, including 16:9, 18:9, and 19.5:9. It is recommended to use with the Nova launcher for better performance.

The theme features a one-screen setup with music, weather forecast, news, and event widgets. The design is sleek and modern, with a futuristic touch that will make your device stand out. The theme is a full version with no additional purchases required. If you like the work of Dessy Dwi Diyanto, please take a moment to leave feedback.