iOS App: Sensor Data Visualization Prototype

I'm looking to create a simple iPhone app prototype that will pull data from an existing database and an already implemented PHP API. The app will be focused on displaying sensor readings related to human back angles, with visual indicators for different sensor spots.

Key Features:
- Display back angles data from sensors
- Visualize sensor data with color codes
- Use scatter plots to represent data

Ideal Skills:
- iOS app development experience
- Proficiency in PHP and database management
- Prior experience with data visualization in apps

I'm looking for someone who can deliver a clean, user-friendly prototype that accurately reflects the sensor data.