Download NOOP 12.0.0 for Android, iPhone and Mac

What is NOOP?

NOOP is a free, independent app for WHOOP straps that works entirely on your own device. It reads a WHOOP 4.0, 5.0 or MG strap over Bluetooth, keeps everything in a database on your phone or Mac, and works out your recovery, strain, heart-rate variability (HRV) and sleep itself. You don't need a WHOOP account, and nothing goes to anyone's cloud.

NOOP exists for one reason: so that someone who owns a WHOOP strap can read their own data, from their own strap, on a device they control. It runs on Android, iPhone and Mac, and the three apps look and work the same way.

NOOP is built by volunteers on earlier community work, and it isn't connected to WHOOP, Inc. It's a capable work in progress: the app itself is upfront about which features are finished and which are still being built.

What NOOP can do

The same features are on Android, iPhone and Mac. Most of them work from imported data alone; the strap adds the live layer.

• Live heart rate: your heart rate the moment the strap connects, smoothed so it doesn't jump around, plus beat-to-beat intervals.
• Charge, Effort and Rest: NOOP's own recovery, strain and sleep scores, each from 0 to 100, worked out on your device from published sport science.
• Sleep: sleep stages, a hypnogram, efficiency, sleep debt and your past nights, not just last night.
• Trends, Explore and Compare: any metric over a week, a year or all time, two to four metrics side by side, and a one-page PDF report you can share with a coach or doctor.
• Breathe: breathing exercises paced by buzzes on your wrist, with your HRV shown before and after.
• Intervals: a silent HIIT timer. The strap buzzes at every switch between work and rest, so you never have to look at a screen.
• Bring your history: import your WHOOP export, Apple Health, Health Connect, and nutrition from Cronometer or MacroFactor, once.
• Illness early warning: a heads-up when your resting heart rate, HRV, temperature and breathing all drift the way they do before you get ill.
• Automations on Mac: lock your Mac when you take the strap off, double-tap the strap to run a Shortcut, and see your heart rate in the menu bar.

Which straps work with NOOP?

NOOP itself runs on Android 8.0 or newer, iOS 17 or newer or macOS 13 or newer (Apple silicon or Intel), each with Bluetooth.

Download the latest NOOP version

The version details below update by themselves within an hour of every new release.

Each button opens our download page, which starts the official file from NOOP's GitHub releases after a short countdown. On an iPhone you'll usually skip the download altogether and add NOOP's source to SideStore or AltStore instead, so it updates itself.

Which guide do you need?

Pick the device you'll use NOOP on. Each guide walks you through every screen, with a picture of each one and the button to tap circled in teal.

Once NOOP is installed, these guides cover the rest:

• How to pair your WHOOP strap with NOOP (7 min read)
• How to import your WHOOP data into NOOP (7 min read)
• NOOP features: every screen explained (8 min read)
• Charge, Effort and Rest: how NOOP's scores work (7 min read)
• Is NOOP private? How NOOP handles your health data (8 min read)
• NOOP not working? Fixes for every common problem (5 min read)
• NOOP FAQ: your questions, answered (8 min read)
• NOOP vs the WHOOP app: what's different? (4 min read)

Before you start

You'll need:

• A WHOOP strap you own. A WHOOP 4.0 gives you the full app; a 5.0 or MG gives you live heart rate for now.
• A phone or Mac that's new enough: Android 8.0 or newer, iOS 17 or newer or macOS 13 or newer, with Bluetooth.
• About ten minutes, and your strap charged.
• On iPhone only: a free Apple ID and, the first time, a Mac or Windows computer to set up SideStore or AltStore.

Install NOOP on Android

NOOP isn't on the Play Store, so you install the APK file yourself. Android asks you to confirm a couple of times; that's normal for any app from outside the store.

1. Tap Download for Android above and open the file when it finishes.
2. If Android says your browser can't install apps, tap Settings and turn on Allow from this source.
3. Tap Install. If Play Protect warns you, tap More details, then Install anyway.
4. Open NOOP and allow Nearby devices so it can find your strap.

Read the full Android guide with pictures, including what to do when there's no "Install anyway" button.

Install NOOP on iPhone

Apple doesn't allow NOOP in the App Store, so it's installed with SideStore or AltStore. These free tools sign the app with your own Apple ID, on your own phone. Once set up, they keep NOOP updated by themselves.

1. Set up SideStore or AltStore on your iPhone (a one-time job that needs a computer).
2. In its Sources tab, tap + and add NOOP's source:

https://raw.githubusercontent.com/ryanbr/noop/main/altstore-source.json

3. Tap FREE next to NOOP to install it.
4. Turn on Developer Mode, trust your Apple ID in VPN & Device Management, and open NOOP.

Read the full iPhone guide with pictures, including the 7-day refresh and how to fix the common AltStore errors.

Install NOOP on Mac

1. Tap Download for Mac above and open the .zip.
2. Drag NOOP into your Applications folder.
3. Open it. macOS will block it the first time because it isn't notarized. Go to System Settings → Privacy & Security and click Open Anyway.
4. Allow Bluetooth when NOOP asks.

Read the full Mac guide with pictures, including the one-line Terminal fix.

Set up NOOP the first time

The first time you open NOOP, a short setup walks you through everything. Read each screen and tap Continue:

1. Welcome: tap Begin.
2. What NOOP does and What to expect: a quick, honest overview. WHOOP 4.0 is fully supported; 5.0 and MG are newer.
3. A quick word before you connect: allow Bluetooth when your phone or Mac asks.
4. Put your strap on: snug, sensor against your skin, charged, and close to your device.
5. Find your strap: NOOP scans and pairs. When it says Bonded · streaming, you're connected. Close the official WHOOP app first, or the strap may refuse to pair.
6. About you: your age, sex, height and weight, so heart-rate zones and calories start from the right numbers. Tap Save & continue.
7. Bring your history: import a WHOOP export now, or skip it and do it later.
8. Tap Enter NOOP.

Pairing has its own guide, with the extra steps a WHOOP 5.0 or MG needs: Pair your WHOOP strap with NOOP.

What to expect in your first week

NOOP works out your scores against your own baseline, so like any recovery wearable it needs a little data first:

• Minute one: live heart rate shows as soon as the strap connects.
• First few minutes: the strap's stored data, roughly its last two weeks, comes across while it's nearby.
• Day one: Effort (strain) appears once you've worn the strap and it has synced.
• First night: Rest (sleep) appears in the morning.
• Nights two to four: Charge (recovery) shows Calibrating while NOOP learns your normal HRV. Don't tap Recalibrate baseline: it starts the count again.
• Two weeks in: your baselines settle and the scores sharpen.

In a hurry? Import your WHOOP export and your history fills in about a minute.

Charge, Effort and Rest: NOOP's three scores

NOOP gives you three daily scores, each from 0 to 100. They answer the same questions as other recovery wearables, using openly documented methods, and they're calculated on your device.

Charge needs a few nights to learn your normal HRV and shows Calibrating until then. How NOOP's scores work explains every input and what the colours mean.

Is NOOP private?

Privacy is the reason NOOP exists:

• No account, ever. There's nothing to sign up for and nothing to sign in to. NOOP never contacts WHOOP's servers.
• No cloud. NOOP has no server. Your strap data, imports and scores stay in one database file on your device.
• Works offline. Collecting from the strap and calculating your scores need no internet connection at all.
• No tracking. There's no analytics, no advertising ID and no crash reporting inside the app.
• One small check. Once a day NOOP reads a public version number to see if there's an update. It sends nothing about you, and you can turn it off.
• Extras stay off until you set them up: backups to a folder you choose, exports, and an optional AI Coach that uses your own AI key.

Because there's no cloud copy, your data lives only on your device. Make a backup before you switch phones or uninstall. Is NOOP private? lists every case where data can leave your device.

NOOP vs the WHOOP app

The WHOOP app is the official, polished experience; NOOP trades some of that for ownership and privacy. Read the full comparison.

How to update NOOP

NOOP checks once a day whether a new version is out and tells you. It never installs anything by itself. To update:

What changed in each version is in NOOP's release notes on GitHub.

Common problems and fixes

See every fix in one place, or ask on r/NoopBand or NOOP's Discord. To report a bug in the app itself, open an issue on NOOP's GitHub and attach your strap log.

Frequently asked questions

More questions? Read all NOOP questions and answers.