Need a complete school erp system with dynamic website and android app for students , teacher, parents admin

I am in need of a complete school ERP system that includes a dynamic website and an android app. The system should cater to the needs of students, teachers, parents, and administrators.

Specific Features Required in the School ERP System:
- Timetable management
- Fee Management
- Attendence Management with biometric
- Students Management
- Exam Management

Specific Features Required in the Dynamic Website:
- Teacher portal
- Parent portal
- Student portal
- Admin portal

Expected Users for the Android App:
- More than 500 users

Ideal Skills and Experience:
- Experience in developing school ERP systems
- Proficiency in web development for dynamic websites
- Android app development expertise
- Familiarity with user management and portal development
- Knowledge of database management and integration