Install Barcode Scanner apk v4.2 app on your smart phone and Scan barcodes on products then look up prices and reviews. You can also scanData Matrix and QR Codes containing URLs, contact info, etc. Also share your contacts, apps, and bookmarks via QR Code. This is why contacts permissions are needed.
Barcode Scanner v4.2 Recent changes:
* Rewrote the autofocus code to be more reliable.
* Started using continuous focus mode on devices which support it.
* Made the volume buttons turn the front light on and off.
* Added support for 2 digit EAN extension codes.
* Fixed a few crashes.
* Fixed another compatibility problem with the Galaxy Tab.
* Improved French, Dutch, and Finnish translations.
Requirements: Android v2.1+