“But QR codes are passé and never really worked” I hear you say... True but why was that? Because you had to bother with a third-party app, that was not pre-installed on the phone, to scan them. In the new iPhone OS version (IOS11), Apple has integrated a QR code scanner into the stock Camera app. It means you can now just point your iPhone to a QR code, a popup banner appears to open the link in Safari, and a single tap opens the mobile browser. No fiddling with third party apps anymore.