QR Code Scanner is a powerful application that can scan and read all kinds of QR codes and barcodes. It is very simple to use, and you can scan them with your camera or even upload the ones that are saved to your gallery. The app also supports many different barcode formats.

How to use this app?
1) Choose a QR code or barcode to scan.
2) Scan it with the built-in camera on your device.

After that, these codes will be automatically saved to your history.

The program is a free application, so you don't need to pay to use it.