Authenpic - A disposable camera on your phone. No retakes.
Filterloop - Filterloop is a fantastic photo editing application offering millions of effects to make your photo look beautiful and attractive.
Gudak Cam - Disposable film camera in your iPhone
RNI Films - Real film filters for iPhone photographers
Freeprints Photobooks - Freeprints Photobooks is one of the best mobile application that helps you to create beautiful photo books right on your mobile devices and tablets.
Argentum Camera - A monochrome camera with beautiful effects