Wallpaper apps are tools designed to beautify the screens of computers, phones, tablets and other devices. These apps provide an extensive collection of high-definition wallpaper resources, covering a variety of styles such as natural landscapes, abstract art, anime/cartoons, celebrity idols, cityscapes and more, satisfying users' diverse personalization needs. Users can easily set their favorite wallpapers as desktop backgrounds or lock screen images with simple operations, turning each screen unlock or power-on into a visual delight.