You don’t need an app for this —your phone can do it already. You don’t need an app for this —your phone can do it already. The humble QR (or Quick Response) code has become ubiquitous.

Fortunately, you can scan a QR code on your phone without needing a second device. Here's how to do it. Google Lens offers a quick and easy way to scan QR codes directly from your phone's screen.