Identifying visually tagged products and places with a mobile phone. The user scans a printed barcode with a mobile tagging application, and either text is displayed or a Web page is retrieved. The QR code is the most popular, and mobile tagging apps are available for all popular smartphones. See
QR code and
barcode.
Multi-Tag Reader
This iPhone app scans BeeTagg, QR and DataMatrix codes. If the app finds a URL embedded in the code, the website is retrieved.
In a Restaurant Window
Scanning the QR code in the restaurant's window downloads information and reviews. See
QR code.