The Simple Postcard - Text a photo to mail it as a postcard
Timelense - Bring postcards to life using AR (and a sprinkle of magic).
Mail the Family - Send postcards to a group as easily as posting a tweet.
Moo Postcards - Simple postcard printing
Mailform Postcards - Choose any photo and send it as a postcard!
Local Mail by Mailjoy - The easiest way to mail potential customers in an area