Free forever · iOS only · No subscription
Free guide · iPhone camera Heart Rate Variability isn't just for elite athletes anymore. If you have an iPhone, you already have everything you need to start tracking your recovery — starting today.
Download Free AppFree to download. No subscription. Core tracking features are free forever.
4.8 ★
App Store
FREE
No subscription
91 BPM
Detected ✓
Learn & Track — All in One Free App
Pulse Rate turns complex biometric concepts into simple daily habits. Measure, track, and understand your body using just your iPhone.
Free
No subscription
No trial period
4.8
App Store
1,200+ ratings
Syncs with Apple Health. Instantly.
Import your workouts from Apple Health to combine activity history with camera-based readings. Every measurement syncs back to your health dashboard automatically.
How it works
HRV measures the millisecond variation between consecutive heartbeats. Higher variability signals your nervous system is in a well-recovered, adaptable state. Lower variability signals fatigue or stress.
HRV only becomes useful once you have a personal baseline to compare against. Commit to 14 consecutive morning readings before drawing any conclusions. Pulse Rate builds your baseline automatically.
An HRV of 40ms might reflect excellent recovery for one person and poor recovery for another. What matters is whether YOUR number is trending up, flat, or down relative to YOUR baseline.
On mornings when HRV is well above your baseline, your body is ready for a challenging effort. On low-HRV mornings, prioritize easier movement, extra sleep, and stress management.
Free iOS Download
Your iPhone camera is all you need. No wearable, no subscription, no credit card. Just download and take your first reading in 60 seconds.
Download Free AppFor fitness and wellness purposes only. Not intended for medical diagnosis or treatment.