QRcao is a service allowing you to share your various contact details with anyone you meet, in a very easy and painless way. QRcao is your personal digital business card, that is capable of holding way more info than it’s paper predecessor. All you have to do is get a QRcao app on your smartphone and fill in your profile. Exchanging data works just like NFC, but using camera, so the app will work on virtually any hardware. Thanks to QRcao you’ll never have to carry business cards on you.