A free program for Android, by Bringe.

Wallpaper Setter allows you to set a magnificent full-screen image as your background in just a few simple steps. This program makes it simple and straightforward to set your complete image as your wallpaper without needing to crop it. It also supports displaying numerous photographs as wallpaper, making it simple to achieve a unified and appealing appearance. With our software, you may personalize your wallpaper in a range of styles and colors, including monochromatic and gradient. We offer everything you need to give your phone a new appearance! Simply install the app on your device and you’re good to go!