I need an app developer for a martial arts club management and class booking app

I need someone to create an app for my martial arts club which allows users to log in and view their information as well as allow them to book onto preset classes on a regular basis. It also needs to allow admins to create these classes and limit the amount of students that can book on, as well as view and edit students information such as grade, medical info etc. It would also be ideal to have a tracker for each student so admins can view how many classes they have attended.

In addition, i need the ability for multiple students to exist under one login so families don't need multiple log ins for each student.