Do you want to pay for coffee without tapping a grimy screen? Here’s how to use your iPhone or Android phone to scan QR codes.

You could get a QR code scanner app. There are free and low-cost QR code scanners out there, where you open the app and then, with that, scan the QR code, and if it’s a fake, you’ll be alerted.

Here’s how to scan a QR code using Android, iPhone or QR code scanning apps.

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.