QR codes have become ubiquitous short cuts for everything from account log-ins to restaurant menus, but are we at risk of running out of codes?

Designed as a high-tech marketing resource, QR (quick response) codes have many useful applications. These (usually) black-and-white algorithmic codes are gateways to a potential multimedia nirvana.

During Apple’s keynote at this year’s WWDC 2017, Craig Federighi announced iOS 11 support for the oft-forgotten quick response (QR) codes. While users stateside may not use QR codes regularly, for ...