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 ...

As smartphones have become more and more ubiquitous, so have QR codes. These maze-looking squares are a type of matrix bar code that contains data — usually, QR codes point to a website or open a ...

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 ...