As a Servant you are the most-valued user so we appreciate you, you will be able to track your class member attendance and visits.
You can update their date easily.
You can save their attendance with 2 features, manually and QR code technique.

As a Super user (Amin 5edma) You will be able to track your servants performance,
and act like them as you can see all date that belongs to your service.

As an Admin You are the Biggest user.
You can manage them and control.