The justWink Greeting Cards app by American Greetings (iOS, Android, free) lets users create and personalize cards for delivery via email, Facebook, SMS, or snail mail. Card templates are arranged into various categories such as holidays, birthdays, etc, and once you've found a card design you like, you can then customize it with your own photos, short messages, and even a little signature/doodle box. There's a category for every occasion, and, with a little searching, you can find a card design that will fit the bill. Sending cards electronically is free, while posting a card, of course, has a small fee.
Verdict: Fun, easy to use, and with loads of good material to work with, justWink Greeting Cards is a great way to send your greetings to friends and family, whether electronically, or in dead-tree snail mail format.
Download justWink Greeting Cards for Android
Download justWink Greeting Cards for iPhone