Upon launching Photo fx, you are greeted by a clean and simple initial screen with four icons (shown below). These icons allow you to choose a picture from the iPhone's Camera Roll to edit, take a photo to edit, adjust the options for Photo fx, or view the help guide.
After choosing or taking a picture, Photo fx opens and reveals a collection of 32 filters broken into six different groups. According to the Photo fx website, there are 327 presets built around the 32 filters to get you started. The filter groups include Face fx, Outer fx, Fun fx (shown below), Wild fx, Classic fx (shown below) and Lens fx. There are also two additional filter groups available for purchase from within the app called Portrait fx and Color fx.
To use Photo fx, simply pick a filter and corresponding filter preset to apply the changes (shown below). All the presets allow for adjustments to get the exact look you want. You can then pick additional filters to apply or save the image. Once saved, the image appears in the iPhone's Camera Roll to view and share.
Overall, I found the interface to be simple yet elegant and it makes editing photos quick and easy.
