Wallpaper 4K is a new free app that has a large varities of 4K (UHD | Ultra HD) as well as Full HD (High Definition) wallpapers | backgrounds. New wallpapers are added by the minute to always keep you entertained and to fill your photos library with the coolest wallpapers! This app is a great tool for 4K Backgrounds | Full HD Backgrounds and it is a Wallpaper Store for user where they can experience best handpicked backgrounds and creative wallpapers. Features of Best Wallpaper app: Simple,