QR Codes are the square bar-codes which are increasingly appearing on posters and advertisements. They can contain text, contact details, URL links, or other information. They can be scanned by applications freely available for mobile phones.
Retailers are starting to use QR Codes in many novel applications. By printing QR Codes on customer receipts, retailers can provide customers the ability to:
- Make the payment through the mobile phone
- Provide feedback through a website
- Retrieve a receipt from a website