You’ll find them deployed to help you order food, connect to Wi-Fi, shop online ... They tell the scanner where the QR code is, how big it is, and how it’s rotated. (A geeky aside: the ...

Your phone can scan QR codes instantly—no extra app required. Here’s how to doit safely, quickly, and efficiently.

Sam’s Club’s customers are able to view the running total of all of the items in their carts as they shop. If a product does not have a visible bar code to scan, shoppers can look up the item ...

People can enter the store after using the Ant Financial Services Group's Alipay app to scan the QR code at the gate, and after shopping, the customers just need to enter a pay area between two ...