Secure Location Tracking App Development

I'm seeking an experienced app developer to create a secure location tracking application for both iOS and Android platforms. The app is intended for personal security use, and will not be used for any illegal activities.

Key Features:
- Track exact location of individuals using their phone numbers
- Integration with Google Maps for accurate location display
- Access to location history of tracked individuals

Ideal Skills and Experience:
- Proficiency in mobile app development for both iOS and Android
- Experience with Google Maps API integration
- Strong background in location tracking technology
- Prior experience in developing secure and user-friendly apps
- Knowledge of data privacy and security measures