Health & Safety Notice

1. NOOP is not a medical device

NOOP is built for general wellbeing, fitness, and education. It is not a medical device and is not intended to diagnose, treat, cure, monitor, or prevent any disease or health condition.

Everything NOOP shows you (recovery, strain, sleep, heart rate, stress, and the rest) is an estimate produced on your device from sensor data. These figures can help you spot trends and reflect on your habits. They are not clinical measurements and should never be read as a diagnosis or a verdict on your health.

2. Accuracy has limits

The quality of every reading depends on your hardware and how you wear it. A loose band, a poor fit, sweat, movement, tattoos, skin tone, and ordinary signal dropouts can all change what NOOP reports. Two readings minutes apart can differ for reasons that have nothing to do with your body.

Some paths are still early. Oura support and the iPhone build are beta and experimental, and may be noticeably less accurate or less complete than the macOS path with a WHOOP band. Treat anything from a beta path with extra caution.

Because of all this, do not make medical or safety decisions from NOOP. If a number worries you, do not act on the number alone. Check in with a clinician.

3. When to seek help

For anything to do with your health, speak to a qualified doctor, nurse, or other clinician. They can examine you, run proper tests, and give advice that fits your situation. NOOP cannot do any of that.

If you think you are having a medical emergency, contact your local emergency services straight away. NOOP cannot detect an emergency, and it cannot alert you, a contact, or any service that something is wrong. It is not a monitoring or alarm system, and it must never be relied on as one.

4. Specific cautions

Take extra care if any of the following apply to you:

• You have a heart condition or any concern about your heart rhythm.
• You are pregnant or trying to conceive.
• You are managing a diagnosed illness or taking medication that affects your heart rate, sleep, or recovery.

In these cases, talk to your doctor before you read anything into what NOOP shows, and follow their guidance over any figure in the app. Do not rely on NOOP for any safety-critical purpose, such as deciding whether you are fit to drive, dive, train at altitude, or do anything else where a wrong call could hurt you.

5. Mental wellbeing features

Features in NOOP that touch on stress, breathing, or mental wellbeing are there to support and encourage you. They are not therapy, counselling, or any form of mental health treatment, and they are not a substitute for professional care.

If you are struggling with your mental health, please reach out to a qualified professional or a trusted support service. If you are in crisis or thinking about harming yourself, contact your local emergency services or a crisis helpline right away.

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NOOP is an independent, open-source project run by a small team. It is not affiliated with WHOOP or Oura. NOOP is free, runs entirely on your device, and uploads nothing.