Simply Postcards
Use a photo as a real postcard. It’s then printed and mailed as a real postcard. Great borders and options on this app!
Postagram: Print & Send Photo Postcards
I use Instagram daily, and this app lets you take your Instagram photos and make them postcards to be sent on. Pretty cool, and a great way to remember specific events.
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Postman
If you’d prefer to create an e-postcard, this creates beautiful images and allows you to post them on Facebook, Tumblr and other sites quickly and easily.
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