QF Master is a free access control App that uses QR code and facial recognition method to open doors. It is a very easy to use app and can be used by both private companies and public institutions.

To start using QF Master, you need to connect it to a BLE door access controller. Once the app has been connected, it is ready to use. To access the door, you need to use the app to scan the QR code or take a photo of your face. After that, you will be asked to make a decision. If you are allowed to enter, the door will open for you.