Wallcat - Enjoy a new, beautiful wallpaper, every day.
Wallpaper Wizard - Wow-worthy backgrounds for Mac
Splashify - Beautiful desktop wallpapers for Mac and Windows
World View Wallpaper - Experience the world through your wallpaper
Irvue - (previously Unsplash Wallpaper) Gorgeous wallpapers on your Mac.
Unsplash Wallpaper - Gorgeous wallpapers on your Mac