QR and Barcode Scanner is a lightweight tool that makes possible the process of scanning barcodes using your Android device. The interface has a very minimalistic design where you can launch the scanning function. The next step is to point the rear camera of your smartphone towards a QR or barcode and the app will do the rest by itself.
You won't have to take a photo or something like that, just make sure the code is visible. This tool is able to decode stuff like contacts, ISBN, URL, text, products, locations, and more. Based on the type of information decoded by this application, you will get relevant options directly inside the interface. If the QR or Barcode scanned by you contains contact information, the app will provide commands for adding this contact to your list, ability to initiate a call, etc.
Another use for this piece of software is to to scan coupons to receive discounts. You can even check a list containing a History of scanned codes inside a separate section. The Settings section allows you to enable/disable the beep when a code is scanned, use auto focus, copy to clipboard, invert scan, etc.