The Quick Response code (or QR code) was introduced in 1994, but it never really took off in the US until decades later when the pandemic created a need for a quick, easy, and (most importantly ...

I've found the built-in scanner invaluable for these ... or right from your Lock Screen by long-pressing the camera icon. Hold your iPhone so that the QR code appears clearly in the viewfinder.

Funny thing about smartphones: it’s the one thing we use more than anything else every day, yet we don’t know all of their ...