The JustWink mobile app from American Greetings lets you pick, write and send greeting cards from your iPhone or Android phone.

Download: Cards for iPhone, iPad, and iPod Touch By far the biggest name on the greeting card app scene, Apple's Cards lets you design and send high-quality printed cards using your own photos.

GeekMom Sarah checks out a new greeting card app that allows for a truly personal touch.

HappyGiant, the independent Boston-based developer of the mobile AR app Hologrid: Moster Battle, is breaking into new ground today by being the first to introduce Augmented Reality Greeting Cards ...