QR Know is a free app that provides users with “QR code-based notes management. It is the most intelligent scanning app for QR codes.
Users can scan QR codes and save text data against them. Users can scan the same QR code again and retrieve the text data back.
History: Which display all the previously scanned QR code’s text data.
Backup and restore option to backup and restore their text data. The QR Know app is available on both Android and iOS.