QR codes are dead, an internet marketing strategist wrote in AdAge in 2013. The murderer: "easier-to-use apps." And yet, four years later, that isn't the case. Apps have become even more prevalent and ...
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 ...