Music Learning App Development

I'm looking for an experienced mobile app developer to create a subscription-based music learning app for both iOS and Android platforms.

Key Features:
- Multi-audio players (non-downloadable)
- User accounts for Students, Teachers, and Admins
- Subscription plans: Monthly, Quarterly, Yearly
- Recording feature for students to send lessons for admin review

Ideal Skills:
- Mobile app development (iOS & Android)
- Experience with subscription-based models
- UI/UX design for seamless user experience
- Backend development for admin panel and user management

Please share your portfolio and relevant experience.