Afterlight

Offering an especially efficient method for tweaking photos, Afterlight comes loaded with 15 adjustment tools, 56 filters, and 66 different textures to enhance shots in a nearly infinite number of ways. Yet while that sounds horribly complicated and overwhelming, a simple and somewhat no-frills interface streamlines the process. There are also cropping, straightening, and rotational tools, and 75 different preset frames to finish off your image. When you're done, the app lets you export your shots directly to all the major social networks. [$0.99; iOS]