Software built into the cameras on iPhones and Android phones make quick work of decoding QR codes. How do you do that on a laptop or desktop computer?

Android's redesigned QR scanner UI is rolling out again, bringing a cleaner look with all key controls in a bottom pill for easier one-handed use ...

In July, Google introduced a redesign of the Android QR code scanner, but rolled it back. The updated interface is now starting to reappear.

Last year, businesses lost $62 billion in revenue from poor lead tracking. Not from bad products or weak marketing—from the gap between customer interest and follow-up. QR codes bridge this gap, but ...