This is the official app of MaterialWallsHD community on Google+, where you can find awesome wallpapers.
With this app everyone can share anche His Own creation; in fact we made in the "Users" category where you can upload all the wallpapers you want with proper credits.
If you find a wallpaper (yes, all the credits are given), and you do not want it in the app please contact us.
We also created a website and you can access to it via the mobile, desktop or via whichever device.
The app is open source so if you want to use the code to make in your own wallpaper app or you want to improve the project, you can simply go to the Github page and download the code.
Links:
App page: https://play.google.com/store/apps/details?id=com.lob.mwhd
GitHub: https://github.com/OhMyLob/MaterialWallsHD-v2.0
Website: http://mwhd.altervista.org
Google+ Community: http://tinyurl.com/MaterialWallsHD