Hipstamatic

Automatically give pictures taken with your cell phone that vintage, 1970's-era Instamatic look. This whimsical photo-enhancement app comes with a choice of six virtual lenses, eight films, and six flashes to transform your images with a grainy, faded aesthetic that makes for distinctive Facebook updates and multimedia messages or e-mails right from your phone.

Cost: $1.99.

Runs On: iPhone.

SodaSnap

Turn any photo on your iPhone into a virtual postcard (complete with text greeting) that you can post on Facebook or Twitter or share via e-mail. The SodaSnap+ premium version lets you resize and make basic edits on your cards, plus you can pick from a variety of fonts for the text box.

Cost: Free-$2.99.

Runs On: iPad, iPhone.

CameraBag

This photo-processing app lets you apply classic effects to images taken using your camera with just a few clicks and finger swipes. Some of the iconic camera looks include 1962 (high-contrast black-and-white), Instant (looks like a Polaroid shot, complete with borders), and Helga (faded colors from a trendy square-format camera).

Cost: $1.99-$2.99.

Runs On: iPad, iPhone.