Develop Routivise Mobile App

I'm looking for a skilled mobile app developer to create the Routivise app for both iOS and Android platforms.

The app should provide robust navigation support, facilitate social networking, and assist in event planning.

Key features to include:
- User authentication (email/password, social media login, or biometric)
- Interactive maps and real-time navigation
- Social networking features like friend connections, messaging, and event sharing
- Event planning tools, including creating, managing, and RSVPing to events

Ideal skills and experience:
- Proficiency in both iOS and Android development
- Experience with map integration and navigation services
- Strong background in building social networking platforms
- Knowledge of event planning functionalities within apps
- Expertise in user authentication and data security

Please provide a portfolio showcasing relevant work.