Ready to go hard?
Ask your morning.
One Recovery score each morning, scored against your own baseline — with HRV status, Recovery time after workouts, and Sentinel for nights when something is off.
One score, and why
Recovery is a 0–100 score from HRV against your baseline, resting heart rate, sleep length and sleep quality. Free, every morning.
Your own baseline
Scored against your last weeks, not a population average. From day one it uses the history already in Apple Health.
Balanced, Unbalanced or Low
Your last 7 nights of sleeping HRV against your normal range from the 60 nights before.
High is not always good
If HRV is high while resting heart rate, breathing or wrist temperature is up, Recovery is held and the screen says why.
Ready for hard training?
How many hours until your next hard session, with a likely range. It hides when you are recovered.
Is tonight unusual?
Wrist temperature, resting heart rate, HRV and breathing together: Clear, Watch or Alert.
How long has it lasted?
Adds up how far your signals were outside normal, day after day, and how fast you usually bounce back.
Several signals, one view
One signal moves for boring reasons — a warm room, a late meal. Sentinel looks for several moving together overnight.
- Five overnight signals: wrist temperature, resting heart rate, HRV, breathing rate and sleep.
- Your own normal: each signal needs 10 nights to learn your range.
- Clear, Watch or Alert — with the signals behind it, one tap down.
- Not a diagnosis. It tells you your body is under strain, not why. If you feel ill, talk to a doctor.
Your heart, over 90 days
Two Pro reports for a longer look, or for a visit to a doctor or coach. Open the samples to see every page.

HRV · 90 nights
Your 7-night average against your own normal range, a status square for every night, and the checks behind it.

Heart rate · 90 days
Resting and walking heart rate against your usual, your daytime average, max heart rate and recovery after runs.

Weekly report
Your last full week: sleep, recovery, training, movement, food, supplements and habits. Made for you, your coach, or sleep only.
Calculated on your iPhone
Recovery, HRV status, Sentinel and Recovery debt are plain arithmetic on your phone. No AI needed. Metrya has no server that could receive your health data.
- No account to make
- No Metrya server in between
- Works offline
- Wellness information, not a medical device
Your morning answer is free
Pro adds the charts behind it and the reports.
- Recovery score, every morning
- HRV status and the held line
- Recovery time
- Sentinel: Clear, Watch or Alert
- Recovery debt
- Watch app with last night’s numbers
- HRV range chart and the checks behind it
- HRV and heart rate PDFs, 90 days
- Watch complications for Recovery and Reserve
- Ask the AI Advisor why a score moved
- Longer history
Common questions
How is the Recovery score worked out?
From HRV against your baseline, resting heart rate, sleep length and sleep quality, on a 0–100 scale. It is calculated on your iPhone. If you are new, Recovery works out the missing days from Apple Health, up to 30 days back.
What is HRV status?
It compares the average of your last 7 nights of sleeping HRV with your own normal range from the 60 nights before, and says Balanced, Unbalanced or Low. The first status needs about 4 weeks of wearing your watch to bed.
Why can high HRV hold my Recovery?
If HRV is above your range while resting heart rate, breathing rate or wrist temperature is also up, Metrya does not call it good news. Recovery is held at the level a normal HRV would give. It only stops a rise; it never pushes the score down.
What does Sentinel do?
It reads wrist temperature, resting heart rate, HRV, breathing and sleep together each night, and says Clear, Watch or Alert. Each signal needs 10 nights to learn your normal. It is not a diagnosis.
Do I need a Whoop or another band?
No. Metrya reads what your Apple Watch already records in Apple Health. Other wearables that write HRV and resting heart rate to Apple Health, such as Oura or Garmin, work too.
Start every morning
with one clear number.
Free on iPhone. No band, no account, no server.
Metrya is a wellness app, not a medical device. Your health data stays on your devices.