Quick response codes are codes that consist of black and white squares that are readable by a camera on a smartphone. Typically, they contain a uniform resource locator that connects the user to Internet addresses containing various product information, such as contact information, offers and detailed product specifications.
A reader application is necessary for a smartphone to recognize and use a QR code. Android phone applications, such as Barcode Scanner, Qr Droid and Neo Reader, can be downloaded at Google Play as of 2015. The iTunes store has free applications available for iPhones, including QR Reader, Zapper Scanner and Qrafter. Blackberry users can get QR Code Scanner Pro and Scan Life Reader, while Windows phone applications include Quickmart QR Code Reader and QR Code Reader