Vagus ECG 12+

Test the health of your Vagus

Vagus Health Ltd.

    • 2.0 • 9 Ratings
    • Free
    • Offers In-App Purchases


Do the VAGUS® test to monitor your stress and the health of your heart, lungs and Vagus nerve itself. Track your real HRV and how you are breathing.

Based on our unique technology, VAGUS ECG provides you with a better understanding of your health, stress and general wellbeing.
Everyone has Dysautonomia sometimes during their life. Test-, monitor- and improve your autonomic nervous system with VAGUS® ECG. The app uses advanced cloud-based data analytics and complex AI-drive analytics to summarise results and advice for you in an easy-to-understand way. The app requires to be used with Apple Watches with ECG sensors. (Series 4 or later).
For more information and use-cases; Join our weekly Clubhouse events hosted by Gustaf Kranck, the founder and CEO of Vagus Health, in the “Vagus” club.
• Perform a 30 second ECG test on you Apple Watch Series 4 or later
• See from your iPhone or Apple Watch how your breathing and pulse are synchronised and get insight into your current state and changes in health.
• See and feel how your own actions affect the data and your wellbeing
• We recommend doing three test daily to learn how your actions impacts your health
• Insert notes to track your routines and actions
• Send the results directly to your doctor or physician.
• Download the Vagus ECG app and register
• Open Apple’s standard “Apple ECG” app on your Apple Watch.
• Place your finger on the crown button of the watch and start by inhaling calmly for 5 seconds, then exhale 5 sec and continue this breathing pattern during 30 seconds (3 cycles of controlled breathing).
• ECG quality improves when you sit relaxed and undisturbed. Let your breathing and pulse calm down before running the test. If results are unexpectedly poor you can run the test again to secure that the ECG readings are correct.
• Read the test results on the VAGUS ECG app on your iPhone or see the summary on your Apple Watch.
• Add notes in the VAGUS ECG app on your iPhone.
This is one of the most cutting-edge ways I’ve ever seen to know how your nervous system is really doing – far more promise than even Heart Rate Variability, which was the gold standard.
– Dave Asprey, ‘Father of biohacking’, Founder of Bulletproof
Vagus Health Ltd is a Cambridge (UK) based bioelectronics company founded in 2017. Our focus is to develop vagus nerve diagnostics- and stimulation technology to measure and treat stress-, anxiety- and immune system related health problems. Our name comes from the vagus nerve, the longest and most important nerve bundle in the body.
ECG recordings and other data are integrated with Apple Watch via the Health App.
The Vagus ECG app, its test and the analysis data or advice are not medical diagnostics tools and they should not be used as such.
Read about our terms of service here:
* Uppgrade to Vagus Nerve Explorer to enjoy the full features of the app!

What’s New

Version 1.5.8

Some minor fixes

Ratings and Reviews

2.0 out of 5
9 Ratings

9 Ratings

Tomuchfor ,

Vagus Health

Renewal two time yet it wouldn’t kick in 🍌

Taytay1524 ,

Downloaded the app It didn't work

Downloaded the app, did the ecg test on my watch several times and the data was never recorded. I reloaded the app from the app store and it asked me to subscribe. It says you get 5 free tests but I wasn't able to get any.
Great concept, poor execution. I'll look at other HRV monitors and the Leif device.


App no longer works after subscription

The app is very glitchy at the moment I subscribed took measurements yesterday and this morning and now it just keeps saying it can’t detect controlled breathing. I have tried over and over but still won’t work and then screen froze twice. Please advise.

Developer Response ,

Recomend you remove the app and then reinstall from appstore.

App Privacy

The developer, Vagus Health Ltd., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Health & Fitness
  • Contact Info
  • Identifiers

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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