Wallpaper Engine - Wallpaper Engine enables you to use live wallpapers on your Windows desktop.
Splashy - Breathtaking, auto changing wallpaper app for macOS, Windows, Linux, iOS & Android
Video Paper - Set a video as your wallpaper.
Irvue - (previously Unsplash Wallpaper) Gorgeous wallpapers on your Mac.
Plastuer - Plastuer is a Windows application for setting GIFs, videos, and web pages as your wallpaper.
Splashify - Beautiful desktop wallpapers for Mac and Windows