Your Calendar,
Predicts Your Health.
From how meetings affect your stress to how sleep determines your work efficiency today.
The first AI that connects Apple Watch and Calendar.
Connected Calendar
Q3 Strategy Meeting
Deep Work (Writing)
Real-time Bio-Feedback
Current HRV
32 ms
Stress Prediction
Moderate
AI Insight: Stress detected from morning meeting. We recommend a 3-minute breathing session before your 2PM focus time.
* hrv.works securely integrates with Apple HealthKit. All data is processed on-device.
Not just tracking.
Bio-Navigation.
hrv.works is powered by an AI model trained on dozens of HRV research papers. It interprets subtle signals from your body and suggests concrete actions to improve your quality of life.
Context Engine™
Get clear answers to "Why am I tired today?" By mapping your calendar events to HRV data, we analyze which tasks drain your energy and whose meetings stress you out.
Habit
Impact
We'll tell you exactly how much that drink last night aged you. See how alcohol, coffee, and late meals affect your recovery.
Body Battery
Should you work out today? Based on sleep recovery data, see your available energy from 0-100%.
Longevity Score
Track your biological age and aging rate through long-term HRV trends. We guide you to live younger.
Real User Transformations
“I discovered my unexplained fatigue was caused by 'marathon meetings' in the morning. Following the breathing guide before and after meetings changed my evening energy.”
Jimin Kim
Product Manager, 32
“As an athlete, preventing overtraining is crucial. hrv.works recovery score is remarkably accurate. It tells me exactly when to rest.”
Sunghoon Park
Crossfit Coach, 29
Start Now.
Data doesn't lie. Listen to what your body is telling you.
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