Blux Camera by Yin Xue
Blux Camera comes with a beautiful UI and features unlike any other camera app. The app takes full use of swiping gestures in all directions to bring up a range of menu options. Swipe to the left to bring up light settings and swipe to the right to adjust contrast and saturation; swipe from the bottom to access the photo album and from the top to access settings. The app even offers an automated voice over that gives you weather conditions and recommended settings for taking your photo. The app is $.0.99 in the App Store. Note: Unfortunately, the developer has not released any updates since 2013.