Taxi App Enhancement

I'm looking to update my existing taxi app. The main focus is adding new features, specifically a price update function that allows pricing to be set per kilometer or mile.

Key requirements:
- Add a per kilometer/mile pricing update feature
- Ensure integration with existing app functionalities

Ideal skills and experience:
- Proficiency in mobile app development (iOS and Android)
- Experience with integrating new features into existing applications
- Strong understanding of pricing algorithms and their implementation

Looking for a developer who can efficiently enhance my app while maintaining its current performance and user experience.