HRV Flow is a health and wellness application designed exclusively for Apple Watch users. The app transforms raw biometric data into actionable insights by calculating a daily condition score (0-100) based on three key metrics: wake-up Heart Rate Variability (HRV), resting heart rate, and sleep duration.
Key Features:
- Personalized Condition Scoring: Uses machine learning to establish individual baselines and provide personalized 0-100 scores each morning.
- Actionable Insights: Explains score changes with simple reasons (e.g., "Wake-up HRV was low" or "Sleep was short").
- Guided Breathing Exercises: Offers 11 different breathing patterns with haptic feedback on Apple Watch to improve recovery when scores are low.
- iPhone Companion App: View score history, trends, and access breathing exercises even without the watch.
- Privacy-First Architecture: All health data is stored locally on device and in iCloud only—no external server transmission.
- Completely Free: No subscriptions, in-app purchases, or ads.
Target Users: Apple Watch owners interested in quantifying recovery, wellness enthusiasts seeking alternatives to expensive wearables (like Whoop or Oura), and individuals wanting to leverage existing health data for actionable insights.
Technical Specifications: Requires Apple Watch (watchOS 10+) and iPhone (iOS 17+). The app demonstrates practical application of health APIs by processing HRV, heart rate, and sleep data to generate personalized wellness metrics.
