Splashy - Breathtaking, auto changing wallpaper app for macOS, Windows, Linux, iOS & Android
Variety Wallpaper Changer - Variety is a wallpaper changer for Ubuntu which is featureful, yet slim and very easy to use.
Wallcat - Enjoy a new, beautiful wallpaper, every day.
Walllpaper - Turn Dribbble shots into backgrounds for every iOS device
Psiu Puxa - Incredible wallpapers of space for desktop and mobile
Muzei - Muzei is a live wallpaper that gently refreshes your home screen each day with famous works of art.