PicLab: Photo Editor is an app that has made the move over from Android and iOS and now has a home on Windows Phone. It's an amazing feature-rich photo editor that works just as well on the Nokia Lumia 1020 as it does the Nokia Lumia 625. Check out our PicLab: Photo Editor for Windows Phone hands-on for more information.
PicLab runs the best on a Windows Nokia Lumia Phone. A review the simply states that the look and feel of this app runs on a smooth program.