Suggested QR Code Readers/Scanners

Native on your iPhone Camera or Android App

Recent Apple iPhone model built in camera recognize QR codes automatically.

On an Andriod - try Lens.

I-Nigma
i-nigma is one of the best QR code readers for iPhone, Android, BlackBerry and Windows Phone. This QR code reader allows you to scan QR codes, DataMatrix and UPC (barcodes) simultaneously, with no need to preset your barcode type. 
With i-nigma's QR code reader, you can share scanned codes through social networks, by email or through SMS. You can also scan vCards or MECARDS and save them directly to your phone's contacts.
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