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
Visuals of Earth - Gorgeous, minimal wallpapers for your phone
Irvue - (previously Unsplash Wallpaper) Gorgeous wallpapers on your Mac.
Topia - Create amazing wallpapers for your iPhone