QR & Barcode Scanner is a free barcode scanner app that allows you to read and scan bar codes from your device's camera to save time and money.

It's free to use, and you can use it without any payments, in-app purchases, or sign-ups. It also has the fastest scanner and code reader in the app store, making it one of the best barcode scanners for Android devices.

This app can also be used to scan QR codes, which is a form of electronic marker that can be used to link to websites, apps, or other electronic content. QR codes are a type of barcode, but they are much more versatile, and can be used for many different purposes.