Its okay.

The application works, but there are a few problems with the app: 1) the menus are a bit cumbersome, and take a while getting used to, (I imagine this could be easily solved), 2) after using the app on several photos, I noticed that the quality of the photograph suffers, making images appear blurry. I looked to see if there was a way to change the settings to include HD photos, but could not find any. I hope the developer fixes these minor problems, (I will be happy to offer a better rating.)

Justin Whitney about A Clear Watermark