Scanning a QR code that's already on your phone is actually simple - here's how

Receiving a QR code as an image creates an awkward problem: How do you scan it with the same phone? Both iPhone and Android ...
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Your phone has a hidden barcode scanner, use it in seconds

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 ...