IoT Specialist for Fitness Band App Development

I'm in need of an IoT expert who can craft a mobile app for my body fitness band. The ideal person for this project would have extensive experience in the fitness tech industry and in developing mobile apps that sync seamlessly with wearable devices. Key app features should include:

1. Activity Tracking - Focus should specifically incorporate monitoring for running/walking.
2. Heart Rate Monitoring - The ability to accurately track the heart data in real time is vital.
3. Sleep Analysis - This feature will help to understand how well someone is sleeping.

In addition to these features, during the workout sessions, there should be real-time tracking of:

- The number of calories burned
- Distance covered
- Heart rate readings

Applicants with a strong background in IoT, mobile app development, and biometrics will be highly favoured. To reiterate, experience with developing apps for the fitness industry – specifically wearable tech – is incredibly important.