Atria for iPhone · Release in progress

A private home for the data already on your wrist.

Connect your WHOOP 4.0 strap directly over Bluetooth and explore live heart rate, recovery, sleep, strain, workouts and trends. Atria works on your iPhone—without an Atria account, cloud sync or recurring Atria subscription.

WHOOP 4.0 only for now; WHOOP 5.0 and MG are not supported. Atria is independent and is not affiliated with or endorsed by WHOOP.

See Atria in action Built in public on GitHub
One purchase. Yours for the long run. ₹999 · US $9.99 · local equivalent
Atria Today dashboard with recovery, sleep, strain, live heart rate and a daily brief
Direct BLEStrap → iPhone
StorageOn device
01On-device

Your health and fitness history stays in Atria on your iPhone.

02Direct Bluetooth

Your compatible strap talks to your phone without an Atria server.

03No account

Open the app, pair your hardware and begin. There is no Atria login.

04One-time price

Pay once. Atria does not add another fitness subscription.

Built for ownership

Your strap should keep working for you.

Have a user-owned WHOOP 4.0 strap sitting unused? Atria gives it a useful second life. It reads sensor data directly over Bluetooth, builds a personal baseline and makes uncertainty visible instead of inventing precision. Atria does not connect to WHOOP cloud accounts or retrieve WHOOP service scores.

No feed. No ads. No cloud profile built around your body.

The full picture

From this morning’s readiness to the habits that shaped it.

Atria keeps the important surfaces connected, so a number always has context.

01 / Today

Start with what matters.

See recovery, sleep, strain, live heart rate and your daily target in one calm view. Missing evidence stays visibly missing.

  • Readiness at a glance
  • Live strap connection state
  • Clear data blockers
Atria Today dashboard
02 / Vitals

See the signal and its limits.

Recovery, resting heart rate, HRV, stress, respiration, sleep and fitness estimates live together—with provenance and availability shown plainly.

Atria Vitals health monitor showing recovery, resting heart rate, HRV, stress, respiration and sleep
03 / Trends

Watch your baseline take shape.

Explore day, week and month views for HRV and other metrics. Atria labels the learning period so early estimates never masquerade as settled truth.

Atria HRV trend and context screen with learning status and monthly chart
04 / Workout

Train live. Keep the evidence.

Follow heart-rate zones and strain as you move, then save a local workout record you can revisit without asking a remote service for permission.

Atria live workout screen with heart rate, zones and strain
05 / Journal

Connect habits to outcomes.

Log the choices that changed your day and compare them against the signals Atria can actually support. Your notes stay local too.

Atria journal screen for recording habits and daily context

Local means local

Your history stays on the iPhone unless you opt in.

The app has no Atria account, advertising SDK or analytics tracker. Strap readings, derived metrics, journal entries and settings are processed and stored on your device. Data leaves the app only when you use an export, authorized Health integration, or an explicit iOS share action for an inspectable anonymized bundle.

Read the privacy policy Get support

Atria 1.0

Your data. One purchase. No recurring Atria bill.

₹999 / US $9.99 Equivalent one-time price in other regions

App Store release in progress.

Atria is a personal fitness and research companion, not a medical device. Do not use it for diagnosis, treatment or safety-critical decisions.

WHOOP is a trademark of WHOOP, Inc. Atria is independent and is not affiliated with, endorsed by or sponsored by WHOOP, Inc.