Age Rating
4+
Apps in this category do not contain restricted content.
9+
Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.
12+
Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.
17+
You must be at least 17 years old to access this App.
Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

About Senstream

RESEARCH RING: LAB GRADE PHYSIOLOGICAL DATA ACQUISITION

PLEASE NOTE: 
The Senstream Researcher Ring is not a medical device and is not intended to diagnose, treat, cure, monitor, or prevent medical conditions or illnesses. The app is designed to record physiological signal data, but not to make medical decisions.

Multi-Sensor:
Electrodermal activity (EDA, aka GSR), ECG, PPG, temperature and motion, captured from a single, user friendly device with long battery life.

Electrodermal Data:
Our initial product is the first ring form factor device that captures electrodermal activity with lab quality, enabling new types of research.

ECG and/or Pulse:
Capture electrocardiograph (ECG) and/or photoplethysmograph (PPG) data, depending on the specific needs of a study or application.

Temperature and Motion:
Capture temperature data from the finger, and contextualize physiological data with motion data captured by the Research Ring.

Mobile and Cloud Apps:
Start capturing data with just a ring and mobile app, which seamlessly connects to the cloud. BIOPAC integration offers powerful tools.

Bold Vision:
The Senstream roadmap, supported by a rich patent portfolio, leverages the convenience and unique physiology of the finger. Stay tuned!
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What's New in the Latest Version 1.2.3

Last updated on Feb 4, 2026
Old Versions
Siri, Spotlight & Shortcuts Integration
- Added App Intents: check ring status, start/end sessions, and flag events using Siri, Spotlight, or the Shortcuts app
- Configurable Siri phrases like "Check my Senstream ring" and "Start Senstream session"

Live Activity Improvements
- Fixed Lock Screen Live Activity using the wrong view on iOS 18+ — was incorrectly showing the Apple Watch layout instead of the iOS Lock Screen layout
- Redesigned Lock Screen Live Activity layout with proper spacing, improved typography, and HIG-compliant margins
- Fixed stale Live Activities persisting after force quit — activities are now cleaned up on app launch
- Fixed Dynamic Island clipping by using compact sensor mode names and adding padding to prevent corner cutoff
- Reverted compact Dynamic Island to original tight sizing around the sensor array

Chart & Signal Fixes
- Fixed live session chart window durations for all signal types (ECG, PPG, EDA, Temperature, Acceleration) with appropriate per-signal window sizes
- Fixed accelerometer conversion to correctly handle signed 16-bit values — negative G-force readings were being misinterpreted as large positive values
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Version History
1.2.3
Feb 4, 2026
Siri, Spotlight & Shortcuts Integration
- Added App Intents: check ring status, start/end sessions, and flag events using Siri, Spotlight, or the Shortcuts app
- Configurable Siri phrases like "Check my Senstream ring" and "Start Senstream session"

Live Activity Improvements
- Fixed Lock Screen Live Activity using the wrong view on iOS 18+ — was incorrectly showing the Apple Watch layout instead of the iOS Lock Screen layout
- Redesigned Lock Screen Live Activity layout with proper spacing, improved typography, and HIG-compliant margins
- Fixed stale Live Activities persisting after force quit — activities are now cleaned up on app launch
- Fixed Dynamic Island clipping by using compact sensor mode names and adding padding to prevent corner cutoff
- Reverted compact Dynamic Island to original tight sizing around the sensor array

Chart & Signal Fixes
- Fixed live session chart window durations for all signal types (ECG, PPG, EDA, Temperature, Acceleration) with appropriate per-signal window sizes
- Fixed accelerometer conversion to correctly handle signed 16-bit values — negative G-force readings were being misinterpreted as large positive values

Senstream FAQ

Click here to learn how to download Senstream in restricted country or region.

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