PowerPhoto Photo Processing Tool offers a number of powerful editing and photo capture tools for your iPhone that, while not necessarily better than other photo editors, are more varied. As a result, you can do quite a few things with this app, from creating GIFs with a custom crafted camera tool to adding watermarks and special effects directly in camera, even before editing.
When you open PowerPhoto Photo Processing Tool, you can choose from a number of options, including opening anything from your library and editing it, or taking a new photo with one of the three camera options provided. The app also allows you to browse local files that might not be in your photo library, a great addition that more photo editing apps should have. With any photo, you can perform edits, share the file, or save the progress you made to your device. From converting files to sending them to your printer, there are plenty of options available in this app. The one issue we had was that, at times, finding a specific action in the interface took longer than we would have liked. Other than that, however, the app runs great.
If you are looking for a new and free photo editing tool for your iPhone, PowerPhoto is a great one. It doesn't look quite as good as some other apps and the editing tools are pretty standard, but the number of other features and camera options more than make up for it. This is a great all-around tool.