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, 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 ...

QR codes are everywhere these days, from glossy product flyers to billboards to T-shirts. But it’s quite possible you have no idea what a QR code is and wouldn’t recognize one if you saw one. And I ...

QR codes may be turning up in more places than ever these days, but are people actually using them? According to market research firm Comscore, at least some of them are -- 14 million in June in the ...