Sure, it's fun to look at family and friends' vacation photos via Facebook. But there's a certain personal touch that's missing from digital sharing. Remember the thrill of getting postcards in the mail?

Now there's an app for that. Postagram is a new digital service that lets you upload a photo from your iPhone, Android or computer, then type in a short note and the recipient's street address. Postagram transforms these elements into a paper postcard that's immediately mailed anywhere in the world -- all for 99 cents.

Postagram's meeting of futuristic functionality and old-school missive is the first app from Sincerely, a tech company run by two Silicon Valley hotshots (their previous collaboration, Xobni email, drew raves from Microsoft founder Bill Gates).

Our favorite part of their new venture? Each postcard's glossy picture can be popped out as a stand-alone snapshot, which is sure to take pride of place on your loved one's mirror or fridge.

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