Blue Wallpapers and Backgrounds Android Application for your smartphone device or tablet. Beautiful photos you can make them as wallpaper easily with two clicks. If the image is larger ...
These applications are entirely free and support various formats such as GIFs, videos, web pages, etc. They also come pre-installed with some live wallpaper that you can use right away.
One dude was so incensed he even wrote a script and put it in Github so people can download all the wallpaper backgrounds for free: "Took me 26 minutes to write this after reverse engineering the app.