Cross-Platform Mobile App Development

I'm looking for an experienced mobile app developer or agency to create a scalable MVP mobile app for both Android and iOS platforms.

Core Functionalities:
- User authentication
- In-app purchases
- Push notifications

Requirements:
- Cross-platform compatibility (Android + iOS)
- Simple, clean, and modern UI design with a professional and corporate aesthetic
- Backend with database (Firebase or recommended alternative)
- App-based admin dashboard

Deliverables:
- Fully functional mobile app (APK + iOS build)
- Admin dashboard (app-based)
- Source code + instructions for future updates

Ideal Skills & Experience:
- Proficiency in mobile app development for both Android and iOS
- Strong UI/UX design skills with a focus on professional and corporate design
- Experience with backend development and database management
- Proven ability to deliver scalable solutions

Please include examples of apps you have developed in your proposal.