Wallpaper Engine - Wallpaper Engine enables you to use live wallpapers on your Windows desktop.
John's Background Switcher - Switch backgrounds to trending imgur, reddit, tumblr threads
RainWallpaper - RainWallpaper is a powerful live wallpaper engine that allows you to use various types of...
Unsplash Wallpaper - Gorgeous wallpapers on your Mac
ScreenPlay - Open-source and cross-platform Wallpaper, Widgets and AppDrawer app.
Splashy - Breathtaking, auto changing wallpaper app for macOS, Windows, Linux, iOS & Android