“What technology will replace Quick Response (QR) codes in the future?”
QR codes have made a bit of a comeback in the last few years and can still be very useful in instances where a URL is not the easiest way to get information to an end user. In a restaurant environment like Starbucks, utilizing QR codes can be an easy way to get specific URLs communicated to customers and employees to access on their handheld devices.
That being said, for things like payment, NFC is the most secure way to communicate back and forth to a customer’s device and that technology can replace QR codes for many applications. Also, Bluetooth beacons are great for location wayfinding in retail locations, they don’t require an action from the user, and they can communicate with an app in the background. So I see a combination of different technologies working together to replace a lot of QR code applications, but the QR code will likely continue to be a convenient and cheap way to transfer information to end users devices without the need for a more expensive technology.