Add Yahoo as a preferred source to see more of our stories on Google. Your smartphone is full of surprises. There's an app if you want to use your phone as a magnifying glass or scanner. Tap or click ...

As smartphones have become more and more ubiquitous, so have QR codes. These maze-looking squares are a type of matrix bar code that contains data — usually, QR codes point to a website or open a ...

QR codes are everywhere these days-on product packaging, restaurant menus, even tickets and invoices. They make life easier by letting you access links, download files, or make payments with just a ...

Add Yahoo as a preferred source to see more of our stories on Google. You can scan the QR code on your own smartphone without needing a second device. Photo: Getty Images QR codes can be scanned ...

A woman holds a smartphone to scan a QR code for contactless payment in a restaurant. QR codes are being used by businesses and brands for everything from payments and registrations to advertising and ...