QR codes are so popular that nearly every device with a camera lets you scan them. Here's how to do it with your phone, tablet, or computer. How to scan a QR code with an iPhone or iPad Both ...

The Camera app on your Windows computer lets you easily scan QR codes using your PC's webcam. If you need to scan a QR code ...

Chinese shoppers have increasingly opted to purchase goods from retail stores and even street vendors with their cell phones to scan QR codes, rather than using a physical card or cash.