NightOwl Companion has 370 thousand installs. Users love it: 4.7 stars from 25,333 ratings. Its best ranking is #61 in Top Free, Medical in United States. Show more ›

NightOwl Companion is made and published by Resmed. AppBrain is an independent app data site and isn't affiliated with Resmed. The app name, icon, screenshots and description belong to Resmed and are shown as published on Google Play.

Summary

NightOwl Companion connects with the NightOwl sensor to evaluate sleep-related breathing and enable at-home testing for sleep disorders. It holds a US MEDICAL ranking of #68 and a strong rating from 25,333 users at 4.74, with 100,000+ total downloads and 10K downloads in the last 30 days.

Pros & Cons

Strong user rating from thousands of reviews
Free to use, lowering entry barriers
Direct integration with the NightOwl sensor
In-app instructional videos streamline setup
Long-standing app availability (3052 days old)
External device data support

Dependent on NightOwl hardware for data collection
Medical context may limit appeal to non-patients or non-caregivers
Broad permission requirements typical for device-peripheral apps

About NightOwl Companion

NightOwl Companion is a medical app developed by Resmed.

How many times has NightOwl Companion been installed?

NightOwl Companion has been installed 370 thousand times. In the last 30 days, the app was installed 10 thousand times. It is ranked in the top 100 medical apps.

What is the rating of NightOwl Companion?

NightOwl Companion is rated 4.74 out of 5 stars, based on 25 thousand ratings.

Is NightOwl Companion free?

NightOwl Companion is free. The app size is 19.16 MB. The latest version available is 4.2.0. The last update was on February 6, 2026.

What are the requirements for NightOwl Companion?

NightOwl Companion requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since June 2018.

Description by Resmed (from Google Play)

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.

More data about NightOwl Companion

Price	Free
Total installs	370 thousand
Recent installs	10 thousand
Rating	4.74 based on 25 thousand ratings
Ranking	Highly ranked
Version	4.2.0
App size	19.2 MB
Number of libraries	48
Designed for Android	5.0+
Suitable for	Everyone
Ads	No ads

App Performance Report

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Screenshots

Screenshots by Resmed, from the Google Play listing

Official page on Google Play

Alternatives to NightOwl Companion

Google Play Rating history and histogram

20K

4.1K

760

150

Installs over time

NightOwl Companion has been installed 370 thousand times. Over the past 30 days, it averaged 340 installs per day.

Changelog of NightOwl Companion

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Developer information for Resmed

Resmed

NightOwlSupport@resmed.com

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Comments on NightOwl Companion for Android

★★★★★ Angela Hines · Sep 13, 2026

Set up was easy. No wires to connect. Enjoyed the experience. I then just went to bed as usual, simple process.

★★★★★ Melessa West · Sep 27, 2026

I didn't sleep very good personally but Night Owl was easy to use.

★★★★★ Luz Weinberg · Oct 7, 2026

Sleep Studies have come along way from having to spend a night in the hospital strapped to machines to THIS: a simple, easy to apply sensor on your fingertip, AT HOME with an easy-to-follow APP!!! Night Owl is genius.

★★★★★ Christina McVey · Sep 19, 2026

Very convenient and instructions are easy to follow. I wish a CPAP machine was this comfortable!

★☆☆☆☆ Ginger Manning · Oct 3, 2026

I didn't even want to give this app a "1-star" rating. I used it 6 nights, and each morning I got a notification that my sleep test was "unsuccessful." The first night, I admit, I had the sensor wrapped too tightly, but the next 4 nights, and after correcting my own error of wrapping too tightly, there "was an error with my smartphone." The last night I tested, I got no explanation as to why it was "unsuccessful."

★☆☆☆☆ Sandra B · Oct 18, 2026

When you open the app, the toggle to get started is buried under 3rd page of hype. No indication to SWIPE UP ON LAST PAGE to activate. Full of design flaws. Google for instructions first. Why not enclose written instructions along with your dire warnings about sleep apnea?

Google Play Rankings for NightOwl Companion

Top rankings

Rank	Country	Category	List
61	United States	Medical	Top Free

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Ranking history in United States

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Technologies used by NightOwl Companion

28 permissions · 48 libraries

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Trust & Safety: The app requires a broad set of permissions (including location, Bluetooth, camera, internet, and foreground services) to support sensor data collection and device communication. It provides a medical-use disclaimer and advises users to consult a healthcare provider before making medical decisions. Users should review granted permissions and follow device instructions to ensure safe use.

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