What is a QR code? A QR code (short for Quick Response code) is a two-dimensional barcode that can be read by your smartphone camera. QR codes provide quick access to product information, promotions ...

Travelers can now store and use their digital passport on Android for faster, more secure airport experiences.

You can scan a barcode with your iPhone by using a third-party app. Currently, there are no built-in apps that can read ...