Instagram is yet another iPhone photo-finessing app, but it’s one that you’ll keep coming back to instead of playing for five minutes and then forgetting about it. editor Micheal Calore’s says it’s “like a mashup of Hipstamatic and Tumblr.”

The app combines a lot of pretty, Lomo-like filters to jazz up your crappy smartphone shots, but the secret sauce is the social aspect, which lets you share the results with Twitter, Flickr, Facebook Foursquare and yes, Tumblr. But that’s not all. You also share your pictures with the Instagram network itself.

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