QR Code Attendance App for Employees & Students

https://mobiworkforce.com.sg/mobile-attendance-tracking-with-qr-codes/

Employees or students can use their smartphones to record attendance with Mobile Attendance Tracking with QR Codes, an inventive and frictionless solution. Users may check in and exit in a matter of seconds by just scanning a special QR code, doing away with the requirement for physical devices or human input.