A QR bar code (abbreviation for Quick Response code) is a specific matrix bar code (or two-dimensional code) that is readable by QR bar code readers. The code consists of black modules arranged in a square pattern on a white background. The information encoded may be text, URL, or other data.
QR bar codes can be used to add contacts and join groups within the BlackBerry Messenger application..
QR codes are also used to download applications to a BlackBerry smartphone via BlackBerry App World storefront 2.05.