On-Demand Cab Driver App

I need an on-demand cab driver service app developed for both iOS and Android platforms.

Essential features:
- Real-time tracking
- In-app payment
- Driver ratings and reviews

Ideal skills and experience:
- Mobile app development for iOS and Android
- Experience in integrating real-time tracking and payment systems
- UI/UX design for seamless user experience
- Knowledge of implementing rating and review systems

Looking for a developer or team who can deliver a robust, user-friendly app within my budget. Please share your portfolio and relevant experience.