PhotoForge: Photoshop for the iPhone
I never realized how useful a simple “curves” adjustment on an iPhone would be until now. Some of the features are a little gimmicky (how many times are you going to use the clone stamp tool on your phone?), but it completely changes the way you use your iPhone as a camera.
While it typically retails for $4.99, it’s on sale for a limited time for $1.99.
