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 ...

While they may not be the all-in-one solution some had envisioned, QR codes are still very popular. It’s easy to understand why, too — just point your camera or scanner at a QR code, and you’re ...