3D Wallpapers Backgrounds - 3D Wallpapers Backgrounds is one of the best apps that offer a variety of beautiful wallpapers and backgrounds for mobile phones.
John's Background Switcher - Switch backgrounds to trending imgur, reddit, tumblr threads
AmoledPix - AmoledPix is one of the best apps that provide high-quality Amoled wallpapers with Amoled display.
Variety Wallpaper Changer - Variety is a wallpaper changer for Ubuntu which is featureful, yet slim and very easy to use.
Vellum Wallpapers - Vellum Wallpapers is one of the best apps that provides a wide variety of HD Backgrounds and Wallpapers for lockscreens.
Wallpaper Cycler - NuonSoft WallpaperCycler is a powerfull utility to manage all your wallpapers and to automatically cycle between your wallpapers.