There are a lot of great iPhone Photo Apps to choose from.
A simple search under “photo” in the App Store came back with a search result of 2199 and “camera” shows 2197.
I count twenty-one on my iPhone/iPad right now! Ryan probably has a dozen more. The more you use the apps the more fun there is to have. The creativity and uniqueness come in the layering use of many apps on one photo.
A useful resource for understanding the amazing opportunities using Camera+ / Camera+Pro and SnapSeed are covered in fellow Nashvillian, Dave Molnar’s eBook iPhoneOnly. Get a free download of the book HERE.