I am totally obsessed with
This app is free and fabulous. You can make digital cards, calendars, invitations, and postcards. Once you easily personalize them you can text, email, or have them printed. It is a blast! I have sent "thinking of you" cards by text, added fun text to pictures, and even expressed condolences. Even though nothing will ever take the place of the old fashioned note through the mail, Red Stamp is incredibly useful and user friendly.