Cross-Platform Healthcare Utility App Development

I am seeking an experienced application developer to deliver a high-functioning healthcare utility app for both iOS and Android platforms.

The application must include vital features such as:
- Appointment scheduling
- Health tracker
- A robust system to capture patient health information
- Monitoring of symptoms and medical histories
- AI interactive mechanism to detect patterns and potential health issues
- Connectivity to other systems like a wireless ECG.

Ideal expertise for this project includes:
- Extensive experience in cross-platform app development (iOS, Android)
- Proven track record in healthcare/medical app creation
- Proficiency with artificial intelligence implementations in app functionalities
- Prior experiences with medical data management systems
- Capability to sync the app with external digital devices (ECG).

In essence, I am seeking someone who can create a comprehensive and intuitive healthcare application that stands out from current market offerings.