How to Make QR Codes on iPhone or iPad. Barcodes—or in this case, QR codes—consist of basic black and white patterns that, ...

If you're on an Android device, you can access the QR code scanner simply by opening the app; for iOS, you'll need to open the Mobile Security app, then tap the QR code scanner icon in the top-right.

While there’s a plethora of QR code scanners on the App Store, one in particular I’ve fallen in love with is Scan. Maybe it’s because Barcode Scanner on the Android Marketplace is so damn slow (I’m ...