Cities Architecture Wallpapers is a free Android app developed by Universal Development Apps. It is a personalization app that provides a huge collection of HD and 4K quality wallpapers of cities' architecture. The app is updated daily, adding new backgrounds to its collection.

The app offers a user-friendly interface with various features. Users can preview the backgrounds in a grid, view them in full size, and download them for free. Additionally, there is an option to crop the wallpapers before setting them as a background. The app also provides top-rated wallpapers lists and allows users to like and add wallpapers to their favorite list.

Overall, Cities Architecture Wallpapers is a great app for those who love to customize their phone's background with beautiful and high-quality images of cities' architecture.