What is a QR code? A QR code (short for Quick Response code) is a two-dimensional barcode that can be read by your smartphone camera. QR codes provide quick access to product information, promotions ...

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 here for hidden apps on your smartphone and how to find them.

QR codes have become an indispensable tool for quickly accessing online content. As a Samsung Galaxy smartphone user, you have the power to harness this technology with ease, thanks to your device’s ...

QR codes, which are those small black and white squares you see on so many products, items and advertisements, give you more information about the item the code appears on. If you're checking out 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 ...