Hi ,
I have a app similar to this , i can give you the app very quickly and add features quickly.
My app has following features :
1. register student
2. Login Student
3. Student can see news and receive notifications
4. Admin will get a portal where he can see registered students
5. Upload Videos / News / Circular and assign to specific students
The cost mentioned is very arbitrary and will change as per exact requirement.
Regards,