How to install NOOP on Android

Before you start

• Android Android 8.0 or newer, with Bluetooth. Check yours in Settings → About phone → Android version.
• About 25 MB of free space for the APK, and more for your data over time.
• Your WHOOP strap, charged.
• Your WHOOP history (optional). If you'd like it in NOOP, request your data export from WHOOP now. See Import your WHOOP data.

The pictures below are drawings of each screen, made to match Android's wording. Your phone's colours and layout may look a little different, especially on Samsung and Xiaomi phones, but the button names are the same.

Download the NOOP APK

Download NOOP 12.0.0 (Android)21.4 MB

The file is NOOP-android-v12.0.0.apk, straight from NOOP's GitHub releases. It saves to your Downloads folder.

Chrome may ask whether you want to keep the file, because any APK can harm a phone. Tap Download anyway.

How to install the NOOP APK

1. Open the downloaded file

   When the download finishes, tap Open in the message at the bottom of the screen. Missed it? Open the Files app (or My Files on Samsung), go to Downloads and tap the NOOP APK.

   

2. Let your browser install apps

   The first time you install an app from outside the Play Store, Android stops and explains that your browser isn't allowed to install apps. Tap Settings.

   

3. Turn on Allow from this source

   Turn on Allow from this source, then tap the back arrow. You only have to do this once for each browser or file app.

   

4. Tap Install

   Android asks whether you want to install NOOP. Tap Install and wait a few seconds. If Play Protect steps in, follow the next section.

   

When it's done, tap Open, or find NOOP in your app drawer.

If Play Protect blocks NOOP

Google Play Protect checks apps installed from outside the Play Store. Because NOOP doesn't carry a Play signature, Play Protect may warn you or block the install. This happens most often on Pixel phones and recent Android versions. Nothing is wrong with the file. Try these fixes in order.

1. Tap More details, then Install anyway

   On the Unsafe app blocked warning, tap More details to open the hidden options, then tap Install anyway.

   

   If you see App scan recommended instead, tap Install without scanning, or let it scan and then install.

2. No Install anyway button? Allow the source in Settings

   The button can disappear, for example after you've installed and removed NOOP before. Allow the install from Settings instead:

   1. Open Settings → Apps → Special app access → Install unknown apps. On Samsung it's Settings → Apps → ⋮ → Special access → Install unknown apps.
   2. Pick the browser or file app you're installing from.
   3. Turn on Allow from this source, then open the APK again.

3. Still blocked? Pause Play Protect while you install

   This is your call to make, for an app you've decided to trust:

   1. Open the Play Store and tap your profile picture.
   2. Tap Play Protect, then the ⚙ settings icon.
   3. Turn off Scan apps with Play Protect.
   4. Install NOOP.
   5. Go back and turn Scan apps with Play Protect on again.

Open NOOP and allow permissions

1. Open NOOP and tap Begin

   NOOP opens with a short setup. Read each screen and tap Continue. The early screens explain what NOOP does and what to expect.

2. Allow Nearby devices

   On A quick word before you connect, tap Continue. Android asks whether NOOP can find nearby devices. Tap Allow. NOOP needs this to find and talk to your strap; it doesn't use it to work out where you are.

   

   On Android 8 to 11 you'll be asked for Location instead, because those versions need it to scan for Bluetooth devices.

3. Allow notifications

   NOOP keeps a quiet notification while it holds the Bluetooth link in the background, and uses notifications for wrist alerts like the smart alarm. When Android asks, tap Allow.

4. Pair your strap and finish setup

   Put your strap on and follow the Find your strap step. When it says Bonded · streaming, tap Continue, fill in About you, and tap Enter NOOP. The pairing guide has the details, including the extra steps a WHOOP 5.0 or MG needs.

   

Keep NOOP running in the background

Android closes apps in the background to save battery. If it closes NOOP, you lose overnight sleep and recovery data. NOOP spots this and asks to be let off: when Android asks Stop optimising battery usage?, tap Allow.

If you skipped that, set it yourself:

• Most phones (Pixel and others): Settings → Apps → NOOP → App battery usage, then choose Unrestricted (or turn on Allow background usage).
• Samsung: do the above, then open Settings → Battery → Background usage limits and make sure NOOP isn't in Sleeping apps or Deep sleeping apps.
• Xiaomi, OnePlus, Oppo, Huawei and others: look for Autostart or App launch in Settings and allow NOOP. These brands name the setting differently; dontkillmyapp.com has the steps for each one.

How to update NOOP on Android

NOOP checks for new versions once a day and tells you when one is out. To update, download the new APK and install it the same way. It installs over the old version and keeps all your data.

If Android says App not installed because the package conflicts with an existing one, the copy on your phone was signed by someone else, such as a different fork of NOOP. Back up, uninstall that copy, then install the official APK.

Back up your NOOP data

Your data lives only on your phone. NOOP turns off Android's own cloud backup for privacy, so a new phone or an uninstall starts empty unless you've made a backup.

Open Backup & Sync in NOOP's menu:

• Choose a Backup folder and turn on Daily auto-backup to save a dated backup every day.
• To move to a new phone, copy a backup across, install NOOP there, and use Restore from a backup…

Backups aren't encrypted. If the folder syncs to Google Drive, Dropbox or similar, your health data goes there too, so only use a service you trust.

How to uninstall NOOP

Go to Settings → Apps → NOOP → Uninstall, or press and hold NOOP's icon and drag it to Uninstall. This deletes all of NOOP's data on the phone, so back up first if you might want it again.

To give your strap back to the official WHOOP app, pair it there again.

Android troubleshooting

Frequently asked questions