2023-06-19 00:00:00 Wallpaper 4K-HD is a free app that has large varieties of HD Live Backgrounds, 4K (UHD | Ultra HD) as well as Full HD (High Definition | FHD+) Wallpapers | Backgrounds. Decorate your home screen & lock screen with a different live wallpaper at the same time! One for your home screen, one for your lock screen! 300+ Cool 3D live wallpapers & animated lock screen backgrounds are waiting to make your phone one of a kind!