This app can to read and decode data from a QR code.
QR code Reader Plus is completely FREE, and all you have to do once you install one is to use your phones camera to scan the barcode, which will then automatically load the encoded data for you.
QR or Quick Response Codes are a type of two-dimensional barcode that can be read using smartphones and dedicated QR reading devices, that link directly to text, emails, websites, phone numbers and more! You may have even got to this site by scanning a QR code!