Alejo Igoa Wallpapers is a free app that features a wide variety of wallpapers by the renowned artist Alejo Igoa. The app includes landscape, cityscape, and abstract designs, all of which are available in high resolution. You can also set your favorite wallpaper as your lock screen or home screen.

The app is free to download and use, but it does contain a few ads. However, the ads are not intrusive and they do not affect the quality of the wallpapers.