Mobile QR codes or 2D code are codes in the same way as ordinary bar-codes are, but their matrix structure can hold more information. The codes are also mobile in the sense that you can use the camera on your mobile device to scan and decode them. You can convert a web address (URL), a phone number, an email address or plain text into a mobile code. After scanning it with your camera phone, you will have instant access to the encoded information straight on the display of your mobile device.