FilePond.js - Uploads anything you throw at it
AfterLight - AfterLight is the perfect image editing app for quick and straight forward editing.
GradCit - GradCit is an application for editing your photos.
RNI Films - Real film filters for iPhone photographers
Pixlr-o-matic - Add retro effects to your photos in a snap!
Pixelmator - Pixelmator is an image-editing application for Mac and iPad.