Zero Two Anime Wallpaper HD 4K is a free wallpaper app available for Android users. Developed by Milu Studio, this app is designed for fans of Zero Two in Darling in the Franxx. The app provides a collection of beautiful photos and fan art of Zero Two, a popular character from the anime series, Darling in the Franxx. The app is easy to use and includes many features such as daily and weekly updates, high-quality photos in 2k and 4k resolution, and a beautiful user interface.

The app allows users to download photos, set them as home, lock screen, or both wallpaper and even as contact photos. Additionally, the app includes many amazing fan art wallpapers and supports caching so users can view photos already loaded without an internet connection. The app is 100% free and notifies users when new photos are available. However, it is important to note that this app is unofficial and not affiliated with the anime series. Overall, Zero Two Anime Wallpaper HD 4K is a great app for fans of Zero Two and Darling in the Franxx to enjoy their favorite character's photos and fan art.