Atlas
Your watch already did the measuring
Heart rate variability, resting heart rate, sleep stages, every workout you recorded. Your Apple Watch captured all of it while you got on with your life. Atlas reads it and does the math overnight. There is nothing to log and nothing to record inside the app.
Three steps, then it runs on its own
Install the app and connect Apple Health
Download Atlas for iPhone. Sign in with Apple or Google, then grant access to Apple Health. That is the setup. Keep recording workouts in Apple Workouts the way you always have.
Atlas reads what your watch recorded
It pulls heart rate variability, resting heart rate, sleep stages and workouts out of Apple Health in the background. No app to open. No button to press. Atlas records nothing of its own, so the data it works from is the data your watch already had.
Wake up to a score
While you sleep, Atlas scores your recovery against your own baseline instead of a population curve. In the morning there is a readiness number waiting. On the Athlete plan it comes with the day's recommendation: how hard, how long, and the reasoning behind it.
Apple Watch is the supported device today. Oura Ring, Whoop and Garmin are planned.
What Atlas does, and what it leaves alone
Atlas is a bolt-on. It sits behind the apps you already use and never asks to replace them.
It does
- Read your Apple Health data in the background
- Build baselines from your own history
- Score recovery, sleep and daily stress
- Track training load across weeks
It does not
- Record workouts or start a session
- Ask you to log meals, moods or soreness
- Need to be open or in the foreground
- Require a second device on your wrist
Stop opening Atlas for a week and it keeps working. The watch keeps recording, Apple Health keeps filling, and the score is there when you come back.
Free gets you the number. Paid gets you the analysis.
Training readiness score, daily stress score, seven days of dashboard history, Apple Health sync. No card to start.
The daily workout recommendation with intensity, duration and rationale. Full recovery dashboard, 90 days of history, sleep stage analysis, HRV trend analysis, an eight-component stress breakdown, and a morning brief in your inbox.
Sport-specific recovery models for endurance and strength, unlimited history, training load monitoring, acute to chronic workload ratio, advanced HRV state analysis, and export to CSV or JSON.
Full breakdown on the pricing page.
Your data
Health data is encrypted in transit, stored on Atlas servers, never sold, never shared with third parties and never used to train outside models. The detail, including what deleting your account removes, is on the FAQ.
Common questions
Do I need an Apple Watch to use Atlas?
Today, yes. Atlas reads from Apple Health, and Apple Watch is the device that fills it with the overnight heart rate variability and sleep staging a readiness score is built from. Support for Oura Ring, Whoop and Garmin is planned.
How long before my score means anything?
You get a number after the first night. It sharpens as your history grows, because Atlas scores you against your own rolling baseline rather than against a population curve. Give it a few weeks of nights before you read the trend as fact.
Does Atlas drain my watch or phone battery?
Atlas runs no sensors of its own. Your watch was already recording heart rate, heart rate variability and sleep before you installed anything. Atlas reads what Apple Health stored and does the scoring on its servers, so there is no extra sensing load on the watch.
Can I keep using my other training apps?
Yes. Record your sessions where you always have. If the app you use writes to Apple Health, Atlas sees the workout and counts it toward your training load.
Start tonight
Wear your watch to bed and your first readiness score is waiting in the morning. Free to start.
Download Atlas on the App Store