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 ...

Most people think of barcode scanners as clunky retail gadgets, not something quietly built into the phone they use every day. Yet modern smartphones ship with powerful tools that can read everything ...

You may have noticed that I frequently post QR codes/barcodes when writing about Android programs. That’s because they’re the easiest way to give you a sort of ...