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You can't deactivate a QR code. It is static, coded data, usually a link to a URL, phone number, or address that your QR app interprets and upon which it can then take the appropriate action.

NFC tags. Near field communication (NFC) tags are one of the new tools that could potentially replace QR codes. Unlike QR codes, NFC tags do not require an extra application. The NFC chip technology already comes built into the majority of modern smartphones, which is a huge advantage.

QR codes are making a comeback in the marketing world as well. As of Apple's 2017 iOS 11 update, the iPhone camera can now scan QR codes with no third-party app required. This opened up possibilities for brands to debut all-new campaigns featuring QR codes in their marketing.

Password protected QR Codes allow you to share your private data with only authorized people. When end-users scan it, they are prompted to enter the required password to be able to access the data. That simple! Note that you can only make dynamic QR Codes password protected.

Perhaps the biggest barrier to QR codes taking off here though, was the fact that consumers needed to download a third-party QR reader application from the app store on their device. This made the user experience clunky and inconvenient, even for digital natives comfortable with mobile technology.

The answer is yes. Most smartphones come with a native QR Code scanner in their cameras. QR Codes are hugely popular amongst businesses and age groups of all kinds. Not just that, QR Codes are used to track campaigns, increase brand awareness, divulge a product's detailed information, and use it to generate a high ROI.

You can't deactivate a QR code. It is static, coded data, usually a link to a URL, phone number, or address that your QR app interprets and upon which it can then take the appropriate action.