Student Attendance Auto. play online

This service is to automate current way of attendance system.
Generally current attendance procedure consumes approximately 10 minutes or more in a single lecture of teacher which makes the current system ineffective.
Our target is to automate attendance system within 20 seconds of time.
Currently our app is designed for teachers only, in future updates more functionalities may be included for students as well.
Still our app is not up to the target, it is still in testing state.
You should check this free version of student attendance automation system. We believe that users help to make the services better. Please suggest us, what functionalities should be added to make it better.
Student Attendance Automation System allows teachers to mark the attendance of students within in 20 seconds without any need of pen and register.
As this is the free version, so users are allowed to add 5 subjects only.
Maximum 10 students can be added in each subject.