Use a smartphone camera to scan QR code and barcode. With the built-in decoder, you can decode and make sense of the information on the QR code and barcode.

This app is a free, convenient, and easy-to-use tool that can be used to decode QR codes and barcodes. It's a powerful, accurate, and reliable tool that's ready to use right away. You don't have to do anything else to use this app.

The app is based on the open source ZXing Barcode Library. It's a completely free tool that's open to the public. You can use it without any kind of payment.