Wallpapers For iPhone - HD - 4K Backgrounds app with a huge collection of popular and breathtaking best wallpapers & backgrounds with daily updates. No other app has such a huge collection of high-quality and best wallpapers and backgrounds for the iPhone. Changing your iPhone phone's wallpaper is another way of expressing yourself and your style. Aside from downloading and taking photos of your preferred wallpaper, you can also download and choose from the iPhone's wide variety of backgrounds.