Your watch already knows how recovered you are. Now your AI coach does too.
Arvo reads sleep, HRV, resting heart rate, and training load from Apple Health on iOS and Health Connect on Android — then turns them into persistent AI memories, threshold-based recovery insights, and suggestions that shape how you train. Not a logo wall: these two integrations are live and syncing daily.
Apple Health accounts connected
Health Connect accounts connected
automatic sync on app open
Live production counts, June 2026.
What Arvo actually reads.
Read-only access, granted by you in the OS permission dialog. This is the exact list from the app's permission request — nothing more, nothing hidden.
Apple Health (iOS)
- Workouts and cardio activities — type, duration, distance, calories, average heart rate
- Steps plus walking, running, cycling, and swimming distance
- Active and basal energy burned
- Heart rate, resting heart rate, and heart-rate variability (HRV)
- Sleep analysis — duration and quality
- Weight, body fat percentage, BMI
The one write permission: completed Arvo workouts are saved back to Apple Health as real workout sessions — your rings close and your history stays yours.
Health Connect (Android)
- Exercise sessions — from Samsung Health, Google Fit, and any app that writes to Health Connect
- Steps
- Sleep sessions
- Resting heart rate
- Heart-rate variability (HRV, RMSSD)
Steps and exercise sessions are the required minimum. Sleep, resting heart rate, and HRV are optional — the AI works with whatever you choose to grant.
What the AI does with it.
Connecting a health source isn't a badge on your profile. Every sync triggers a real analysis pipeline — here is exactly what runs.
Memories, not just charts
After every sync, Arvo updates persistent AI memories: your weekly sleep pattern, your HRV baseline with resting heart rate, your weekly cardio pattern, and your body-weight trend. The coach carries them into every conversation and every decision.
Recovery insights with thresholds, not vibes
Slept under 6 hours? The AI suggests reduced intensity today. Under 5: recovery becomes the priority. HRV trending down across the week: fatigue caution. Cardio already done today: it flags reduced volume for your strength session.
Recovery status on your home screen
Today's HRV against your own baseline, resting heart rate, and a recovered / moderate / fatigued status — straight from the latest sync, on the home feed.
A coach you can interrogate
Ask the chat coach "how's my recovery?" It has dedicated tools to read your recovery summary, training load, body metrics, and recent cardio — and answers from your data, not from generic advice.
Plan context from day one
During onboarding and check-ins, the AI sees your average sleep, HRV trend, resting heart rate, and last night's sleep when it generates insights about your training plan.
Live HR-zone cues with the watch app
With Arvo on Apple Watch or Wear OS, live heart rate flows into the session: the peak HR of each set is mapped to a 5-zone model from your age-predicted max, and redlining in zone 4–5 triggers a "take more rest" safety cue.
Connected in 4 steps
Install Arvo
iOS or Android, free plan included, magic-link login.
Open Profile → Integrations
Pick Apple Health on iPhone or Health Connect on Android. No third-party account, no OAuth — the connection is on-device.
Approve in the OS dialog
You choose exactly which data types to share. The first sync imports the last 30 days.
Just open the app
Whenever your data is more than a day old, Arvo re-syncs automatically on launch and re-runs the health analysis. No buttons to remember.
Privacy, verifiable.
Every claim below matches what the app's code does — not what a marketing page wishes it did.
Permissions live in the OS
You grant and revoke access in iOS Health settings or the Health Connect app — not in a buried Arvo menu.
Read-only by design
The only write permission is saving your completed Arvo workouts back to Apple Health on iOS. Everything else is read.
Used for your coaching only
Synced data feeds your own memories, insights, and recovery card inside your account.
Disconnect and delete in one action
Disconnecting from the app can also delete all synced health data from Arvo. Full details in the privacy policy.
Frequently Asked Questions
How do I connect Apple Health to Arvo?
In the iOS app, open Profile → Integrations → Apple Health. iOS shows the standard HealthKit permission sheet where you choose exactly which data types to share. There is no third-party account or OAuth login — the connection happens on your device. The first sync imports the last 30 days of data.
How do I connect Health Connect on Android?
Profile → Integrations → Health Connect. Arvo reads from Health Connect itself, so anything that writes into it — Samsung Health, Google Fit, and most wearable apps — flows through. Steps and exercise sessions are the required minimum; sleep, resting heart rate, and HRV are optional and the AI simply works with whatever you grant.
What data does Arvo actually read?
On iOS: workouts, steps and distances (walking, running, cycling, swimming), active and basal energy, heart rate, resting heart rate, HRV, sleep analysis, weight, body fat percentage, and BMI. On Android: exercise sessions, steps, sleep sessions, resting heart rate, and HRV (RMSSD). Access is read-only — the only write permission is on iOS, where completed Arvo workouts are saved back to Apple Health as real workout sessions.
What does the AI do with my health data?
After every sync Arvo updates persistent AI memories — your weekly sleep pattern, HRV baseline with resting heart rate, weekly cardio pattern, and body-weight trend — and runs an anomaly check: short sleep triggers a recovery suggestion, a declining HRV trend raises a fatigue caution, and same-day cardio flags reduced volume for strength work. Your home screen shows a recovery status, and the chat coach can read your recovery summary, training load, and recent activities on demand.
Does Arvo react if I slept badly?
Yes, with explicit thresholds rather than vibes. Less than 6 hours of sleep last night produces a reduced-intensity suggestion; less than 5 hours escalates to a recovery-priority warning. A week of declining HRV adds a fatigue caution. These insights appear in the app and feed the AI coach's context.
Is my health data private? Can I delete it?
Permissions are granted and revoked in the OS itself — iOS Health settings or the Health Connect app. Synced data lands in your Arvo account and is used to power your own coaching: your memories, your insights, your recovery card. You can disconnect at any time from the app, and the same action can delete all synced health data from Arvo. Details are in the privacy policy.
Do I need an Apple Watch or Wear OS watch?
No. Apple Health and Health Connect aggregate data from your phone and any device that writes into them, so sleep, HRV, and resting heart rate flow in without a watch. With the native Arvo watch app you additionally get live heart rate during workouts and per-set heart-rate-zone safety cues.
What about Garmin, Fitbit, Strava, or Polar?
We only promise what is live. Apple Health and Health Connect are the two primary, battle-tested paths. Fitbit and Polar can connect via OAuth today but are used by a small minority. Garmin shows as "coming soon" inside the app — the code is ready but it waits on partner approval, so no dates promised.
