NightOwl Companion

NightOwl Companion

Resmed
★★★★★ 4.7 Health v4.2.0 100,000+
Verified Safe & Direct
Download APK Google Play
NightOwl Companion Screenshot 1NightOwl Companion Screenshot 2NightOwl Companion Screenshot 3NightOwl Companion Screenshot 4NightOwl Companion Screenshot 5
Version
4.2.0
Downloads
100,000+
Updated
Feb 6, 2026
Developer
Resmed
Category
Health
Content Rating
Everyone
Package
com.ectosense.nightowl
Platform
Android

Download Sources

Device Configuration

Split APKs Installation Guide

Some apps are distributed as Split APKs (multiple .apk files packaged together) to optimize resources. Standard Android installers cannot open them.

1. Download Split APKs Installer (SAI) from Google Play Store.
2. Download the app archive (.apks) using the download sources listed above.
3. Open SAI, click "Install APKs", choose the downloaded archive, and click Install.

What's New

- Minor feature enhancements
- Performance improvements
- Bug fixes

Thank you for using NightOwl!

About this app

This app allows you to interact with the NightOwl sensor that measures signals from your index finger with a small light sensor to check if you have sleep-related breathing disorders.

You can set up the test in a few minutes using the in-app instructional videos. Wear the sensor for the prescribed number of nights to complete the test.

Disclaimer: This app may provide information from external medical devices. Before making any medical decisions based on this information, read the device instructions carefully and speak with your healthcare provider.

User Reviews

Mitch Kobayashi Jun 16, 2026
★★★★☆

This was a much easier way to get tested. No wires or tape to keep things attached. I got a bad rash from the wristband on the original kit and had to drive far to return the kit. This one is done on an app and can be reused for up to 10 years no returning and disposable. Sticks on your index finger and you do not notice it.

Stephen Davidson Apr 25, 2026
★☆☆☆☆

Does Not Work. Last night the app itself froze and it would not respond this morning. It would not stop recording so I closed the app and re-opened it. Once I did that I was able to stop recording. Then I get an error message stating that it didn't record because the sensor wasn't connected even though I followed the set up instructions perfectly. I've had 1 successful night out 5 recording data for this test and ive done the exact same thing every night for the test. So it's definitely not me.

Amanda Fischer Jun 12, 2026
★★★★☆

❤️ this option for a sleep study! I believe this is more accurate due to home environment. Completing a sleep study at an office is more like a stay at a hotel. Especially, if you have pets that wake you up in the middle of your sleep. Being able to do this at home is wonderful! Only issue I have is how we use a piece medical tape on the device to be strapped onto your finger. It should be more like a pulse oximeter probe where it is strapped on vs the big bulky box.

Aaron Corpus Apr 16, 2026
★★★★★

App is very unstable and keeps glitching out an recording when I don't want it too. Now Daybreak is saying that that can't find record of the first test I took last night but the Night owl support team is telling me that it was completed successfully. I will happily change this review if the app gets fixed or we find a solution. - The app worked and everything was resolved. Thanks night owl.

How to Download NightOwl Companion APK

  1. Enter the package name com.ectosense.nightowl on the APK Downloader.
  2. Select your device architecture (ARM64 recommended for modern devices).
  3. Click Download to get the merged APK file.
  4. Transfer and install the APK on your Android device.
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Security & Signature Verification

This APK download is 100% safe. We verify that the cryptographic signature of the file matches the official developer credentials. No modifications or adware are injected.

Location Special Access
  • approximate location (network-based)
  • precise location (GPS and network-based)
Camera Special Access
  • take pictures and videos
Other Basic Access
  • view network connections
  • pair with Bluetooth devices
  • access Bluetooth settings
  • full network access
  • run at startup
  • draw over other apps
  • prevent device from sleeping
  • Google Play license check
  • receive data from Internet

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