Why won’t my phone scan a product barcode?
iPhone: The scanning feature of the App will only work with iPhone 3 GS and iPhone 4. If you have one of these phones and are still having trouble, see the INFORMATION section for more tips on how to use the scanning feature.
 
Android: The scanning feature depends on your handset. It depends on quality of the camera the auto-focus feature of the phone which varies between models. Models where the scanning will work include Samsung Galaxy SI & SII, HTC Desire, Desire HD, Sensation and other similar handsets.