OK

The app does a decent job of enabling changes to adjust angle of perspective; however, the controls offer no ability for users to readjust angle of view once it takes you to the crop page. If you want to re-adjust after cropping, you need to trash the work product and start all over again. That should be an easy fix, and if the app developer makes it, I would consider 4 stars.

WilliamHTaft about Perspective Correct - Fix distortion and skewed pictures with keystone and straighten correction from camera or photo library, v2.5