Here’s the idea: you attach a QR code to your key ring that, when scanned, opens a texting window with “I found your keys!” set to send to the key owner’s phone. When I saw the instructions for this ...

Amazon will start rolling out its own version of QR codes, TechCrunch reports. Called SmileCodes, they function just like a typical QR code -- scan it with your phone and see where it leads -- but ...

Through the new initiative, customers are invited to scan the QR code on the in-store display, choose from the more than 20 new designs and send virtual gift cards to recipients. Last month, the ...