Business cards, particularly when elevated with QR code, still serve a powerful role in establishing one’s identity and status before a conversation even begins.

Google launches QR code feature for Business Profiles, making it easier to send customers directly to the review page.

QR code payments are an aspect of electronic commerce in which customers use their smartphones to scan a QR code associated with the business’s account. The scan then leads them to a payment entry gateway or an e-wallet solution, to effect the payment in a more secure manner.

Gmail will soon ditch SMS codes for two-factor authentication, and use QR codes instead. This will reduce the impact of global SMS abuse.

In an attempt to improve user privacy, Google's Gmail has decided to replace SMS authentication with QR codes.

You can share the QR code with your customers in your marketing materials or hang it in your store to help them leave you a review.