Need to have a Student Management Software developed with functionality of online test and the same software can be integrated with android and IOS

Need to have a Student Management Software developed with functionality of online test and the same software can be integrated with android and IOS. The application should also run on LAN without having online connectivity. For information regarding our core business, refer the website [login to view URL] that website needs to be revamped. With all the features. Please provide a flow cart of the flow chart of the process which will be followed to complete this project. Required in app Student database Attendance (manual, geo location integrated and biometric attendance machine integrated) Batch creation, class reminder, fee management and reminder, separate message integrated for parents no, Online Test Question bank creation with separate level Class, subject, chapters, topic, difficult level, examination tagging Online test assignment with specific restrictions managed by admin. Separate visibility for students, guardian, teacher and admin. And more we can discuss later.