The app · A guided tour

A whole platform.
Not a dashboard.

NOOP reads your WHOOP or Oura over Bluetooth and turns it into something you actually want to open every morning. Three daily scores, every number explained, your sleep, your trends, your coach. All computed on your own device, all yours.

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3 daily scores Every number explained No account Free forever

The NOOP Today screen: a dusk sky header above Charge 51, Effort 67 and Rest 87 rings, with cards for Stress, Fitness Age, Vitality, HRV and Resting Heart Rate.

Three questions, answered daily

Charge, Effort and Rest.

Every NOOP day comes down to three numbers, each on a 0 to 100 scale, each read from your own heart rate, HRV and motion and computed on your device using open, published sport science. They aim at the same questions WHOOP answers, with our own honest, documented maths.

How recovered are you?

Charge

Your overnight recovery, led by heart-rate variability against your own rolling baseline, plus resting heart rate, last night's rest and a skin-temperature flag.

0 to 100

How hard did your heart work?

Effort

Your day's cardiovascular load, built from heart-rate-reserve zones on a logarithmic scale. Easy days sit low, and an all-out day near 100 stays genuinely rare.

0 to 100

How restorative was your sleep?

Rest

A composite over each staged night: how long you slept against your own need, how efficiently, how much was deep and REM, and how consistent your timing was.

0 to 100

The whole app

Four taps into NOOP.

From the morning's Today screen to the depth behind More, an explained score and a restful night. Every pixel rendered from your own band, on your own device.

NOOP Today screen with the Charge, Effort and Rest rings under a time-of-day sky.

NOOP More menu listing Coach, Workouts, Health, Lab Book, Stress, Breathe, Intervals and Compare.

NOOP Charge breakdown showing each recovery driver with its points contribution.

Today

Your day, under a sky that follows the day.

Open NOOP and the header reads the time of day, dawn through dusk, behind your three rings. Charge, Effort and Rest sit up top; below them, the cards you choose: Stress, Fitness Age, Vitality, HRV, resting heart rate and more.

✓Three rings at a glance, with the source band beneath each
✓Reorder and customise your own metric cards
✓A plain-English synthesis line, like "HRV 7% over baseline"

Depth

Everything else, one tap away.

Behind Today is a real app. Tap More and you find the depth: a live session view, retroactive workouts, your health records, a Lab Book for notes, Stress, Breathe, Intervals and a Compare tool. Insight engines that genuinely interrogate your data, not just paint a chart.

✓What Moves You: behaviour effects with real significance tests
✓Compare and Explore any two metrics, with correlation and lag
✓Breathe and Intervals for guided sessions, all on device

67EFFORT

Built for the questions you actually ask.

Am I recovered? Did I push hard enough? Was that sleep any good? NOOP answers all three from your own band, on your own device, without a subscription and without sending a single reading to a server.

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NOOP score breakdown titled 'What shaped your Charge', listing HRV, resting heart rate, sleep quality, respiratory rate and skin temperature, each with a points contribution and a one-line reason.

No black box

Tap any number. See exactly what built it.

Every score opens up. Charge shows you the drivers that shaped it: HRV against baseline, resting heart rate, sleep quality, respiration and skin temperature, each with its points and a plain reason like "above baseline, supporting recovery". Nothing is hidden behind a brand.

✓Per-driver contributions, with your value beside your baseline
✓A Solid, Building or Calibrating confidence tier on every score
✓When a number can't be computed honestly, it shows nothing

These are independent approximations of published methods, not WHOOP's private algorithms, and NOOP is not a medical device. Read the science.

NOOP Today screen in its night theme: a dark sky with the Charge, Effort and Rest rings and the morning's metric cards.

Sleep and rest

Every night, staged on your device.

NOOP stages each offloaded night into wake, light, deep and REM from your motion, heart rate and respiration, then rolls it into your Rest score. Duration against your own sleep need does the heavy lifting, with efficiency, restorative share and consistency on top.

✓A full hypnogram with efficiency, WASO and stage minutes
✓Rest weighs duration vs your personal need most heavily
✓A calm night theme that follows the early hours

Sleep stages are honest approximations, around 65 to 73% epoch agreement against the research ceiling. Deep sleep is the weakest estimate, and we say so.

A bright, calm studio with soft natural light.

Optional · Bring your own key

A coach, only if you want one.

The AI Coach is the single opt-in feature that can reach the network, and it is off until you switch it on with your own API key. Ask it a question and it sends a short text summary of your recent metrics to the provider you choose. Nothing else in the app ever touches the network, and your raw data never does.

✓Off by default, your key, your chosen provider
✓Sends a short metrics summary only, never your raw streams
✓The rest of NOOP stays fully offline, with no account

One app. Both bands. Nothing uploaded.

NOOP runs on Mac, Android and iPhone, speaks to your WHOOP and your Oura, and does every calculation on the device in your hand. There is no server to breach because there is no server.

3daily scores

2bands, one app

0accounts or cloud

£0forever

One screen you own