Heart Rate Fragmentation1.6 - App Store
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Official App Store Link
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Publisher Description
Spot chronic stress before HRV alone. Analyze heart rhythm as "Smooth vs Choppy" in 30-second Apple Watch ECG.
One time purchase, No subscription, No in-app purchases!
Is your heart rhythm getting choppy?
Heart Rate Fragmentation turns a 30‑second Apple Watch ECG into an early‑warning Stress & Recovery Score—an ECG‑based stress check you can run every morning. All findings are backed by published studies (referenced inside the app).
Why Heart Rate Fragmentation > Heart Rate Variability?
• Heart Rate Variability is skewed by – movement, breathing, and extra or missed heart beats.
• Heart Rate Fragmentation can identify micro‑transitions to reveal true heart rhythm smoothness and information on how effective your heart rate adapts even when the trace looks normal.
Key Metrics
• PIP (Percentage Inflection Points) – overall smoothness.
• Heart rate patterns: Waves (Smooth, Moderate, and Choppy) and turn transitions (gentle and hard) show how your heartbeat adjusts moment‑to‑moment.
• VFI (Vagal Fragmentation Index) – ‘rest and digest’ strength.
Based on emerging peer‑reviewed research; not yet a clinical standard.
How to Record
1. Open the ECG app on Apple Watch and rest for 30 s.
• Need extra precision? High‑Precision Mode lets you record back‑to‑back sessions.
2. Tap Extract Latest ECG Data in Heart Rate Fragmentation app to see results.
3. Short‑term (7‑30 days), persistent (31‑60 days) and chronic (61-90 days) trends are tracked automatically.
Who it’s for
• Athletes wanting deeper recovery insight.
• Professionals tracking chronic stress.
• Researchers & biohackers.
Disclaimer: Heart Rate Fragmentation provides wellness information and is not a substitute for professional medical advice.
Download Heart Rate Fragmentation now and discover whether your heart is running smooth or choppy—in just 30 seconds!Jun 15, 2025
Version 1.6
Clearer Trend Analysis:
• The app now compares your daily VFI values directly to show more accurate trends in your stress and recovery patterns. This makes it easier to understand if you're improving, staying stable, or need to adjust your habits.
