Instagram - Instagram is a mobile, desktop, and Internet-based photo-sharing application and service that allows users to share pictures and videos either publicly, or privately to pre-approved followers.
Manual Camera for iPhone - Custom exposure for your iPhone camera
Halide - A premium camera for your phone
Priime - Edit photos with the styles of the world's top photographers. Smart suggestions, fast editing, and inspiring collections.
Focus - New Tab page that gives you a moment of calm and inspires you to be more productive.
Pixlr-o-matic - Add retro effects to your photos in a snap!