There are three different ways to scan QR codes on your iPhone, each with its own advantages. Here's how to use them and why you might want to pick one over the others.

A quick QR code scan can resolve all these questions and more. Think of this tech as a smart barcode. QR codes existed long before smartphones, and your device can scan them right out of the box.

Additionally, a QR code's data structure contains duplicates, ensuring that even with 30% damage to the code, it will still be readable by a scanner.

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

QR Code Reader is by far the easiest way to scan QR codes on Windows Phone. It also excels at deciphering the type of smaller, resized QR codes commonfly found embedded on web pages that confuse ...