You can read that i-nigma is the most widely used mobile barcode reader (2D) in the world. Maybe you should try it too.
Scan QR or Data Matrix Code with your built-in camera on your mobile, or create your own barcode. Creating a mobile barcode is easy, just select what kind of barcode you want to create (QR Code or Data Matrix), then type text you want to encode and mobile barcode will be created.

For download go to www.i-nigma.mobi or click on link bellow.
Download
Nokia barcode reader scans and decodes two dimensional barcodes (2D code).
It uses the built-in camera on your mobile. Point the camera at a code and connect to a website, view a message or get a phone number ready for dialing.

Download
Kaywa Reader scans 2D Barcodes (QR Code and Datamatrix) and the content of the 2D Barcode is immediately resolved on the phone. Create your own 2D Codes at qrcode.kaywa.com
You can create and scan URL, text, phone number, SMS..
scan 
Download
Install ScanLife and turn your mobile phone into a 2D barcode reader.
You can quickly access informations, launch websites, download… by holding the camera directly over the code, and barcode should be clearly focused. Scan a 2D barcode (Datamatrix, EZcode, QR) and this is it.

Download ScanLife for free at OviStore.