I am going to walk through how to unlock that hidden scanner in seconds on both iPhone and Android, then show practical ways to use it for shopping, travel, work, and security. Once you know where to ...

You probably think you need to use your smartphone's camera to scan a QR code, right? That's not the case — it's entirely possible (and super-easy) to scan a "Quick-Response" code that's already saved ...

Receiving a QR code as an image creates an awkward problem: How do you scan it with the same phone? Both iPhone and Android have straightforward workarounds.

Back in July, Google widely introduced a redesign of the Android QR code scanner, but then rolled it back. The updated interface is now starting to reappear. This is the QR code scanner available from ...