Splashy - Breathtaking, auto changing wallpaper app for macOS, Windows, Linux, iOS & Android
WLPPR - Beautiful mobile wallpapers made from satellite imagery
Splashify - Beautiful desktop wallpapers for Mac and Windows
Walllpaper - Turn Dribbble shots into backgrounds for every iOS device
Irvue - (previously Unsplash Wallpaper) Gorgeous wallpapers on your Mac.
Psiu Puxa - Incredible wallpapers of space for desktop and mobile