Hipstamatic - Hipstamatic is a world-class photography app and Apple’s original App of the Year.
Snapseed - Snapseed is a photo enhancement and sharing app with a powerful suite of imaging filters and tools...
PicsArt - Explore 100,000,000+ awesome images and photos on the web
Lo-Mob - Lo-mob brings lo-fi and photographic experimentations to your mobile pictures.
Paper Camera - Paper Camera is the BEST Sketch/Cartoon app in the App Store.
Polaroidz 7 - Love those polaroid photos taken in instant Polaroid camera?!