GitHub repository: vardaan-raj/Wall_Papers_android_app
Description:  Walla is a cloud-based wallpaper app which has a huge collection of wallpapers. All the backgrounds are in 2K (3200x2560px) QHD quality or UHD quality to make your screen look crispy and you can easily set and download them from the app itself. New images will be added whenever possible and there is no need to update the application because of the cloud power.