Spatium - A space odyssey awaits you.
Vellum - Free beautiful hand-curated wallpapers for the iPhone
Unsplash Wallpaper - Gorgeous wallpapers on your Mac
BRDIVIU - Free phone wallpapers shot by drones
Artpaper for iOS - Art wallpapers from the world's best galleries in 5K.
Splashy - Breathtaking, auto changing wallpaper app for macOS, Windows, Linux, iOS & Android