NightOwl Companion

NightOwl Companion
Developer: Ectosense
Category: Medical
3.3M installs
65.3K ratings
229.4K monthly active users
Revenue not available
Install Trends
Weekly +32K
Steady
Monthly +136.5K
Steady

NightOwl Companion Summary

NightOwl Companion is a mobile iOS app in Medical by Ectosense. Released in Jul 2018 (7 years ago). It has 65.3K ratings with a 4.79★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 229.4K monthly active users . Store metadata: updated Feb 11, 2026, version 4.

Recent activity: 671 new ratings this week View trends →

Data tracking: SDKs and third-party integrations were last analyzed on Apr 27, 2026.

Store info: Last updated on App Store on Feb 11, 2026 (version 4).


4.79★

Ratings: 65.3K

5★
4★
3★
2★
1★

Screenshots

App Description

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.