Our Favorite Photo Apps To Document Your Vacation

Postcard on the Run

This app allows you to create and personalize your own postcards, using photos that you take yourself. All you have to do is take a photo, personalize it by choosing a border, even add a "scratch and sniff scent" for 50 cents more, type a message, select a name from your address book, and sign your name by moving your finger across the screen. The app then creates and sends a 4x6 glossy postcard for you. You can check if your postcard was delivered by asking the recipient to scan a code on the back of the card, letting you know it arrived. Cost: $1.49 for a postcard within the U.S., $1.69 to send internationally. [Photo via]