Breathe Flow 4+

Vagus Health Ltd.

    • 4.0 • 3 Ratings
    • Free
    • Offers In-App Purchases


• Learn more about your breathing and health with a 30-second ECG test.
• The app will give you advice on how to improve breathing, reduce stress and gain a better understanding of how food, drink or sleep is influencing your cardiac/respiratory health.
• Receive real ownership of your smartwatch data.
• It is free – do as many tests as you want.
This is the first ever app to show the breathing-induced flow and the breathing induced pulse variation (HRV) - generated from your smartwatch ECG signal. The test lasts only 30 seconds. Breathe Flow is not a usual breathing advisory app. It shows your real breathing and it teaches you how to do controlled breathing with the 'VAGUS® ideal breathing curve'.
With this app we also launch the VAGUS® wallet and ownership tokens, which enable data ownership and rewards for the data.
Your smartwatch must have an ECG sensor. These are included in Apple Watch Series 4 and newer (not version SE), Samsung Galaxy Watch 4 and newer versions, Withings ECG watches
• Apple Watch: Firstly open the Breathe Flow app and keep it live on your phone. Open 'Choose your device' page and connect with Apple Health, please allow Breathe Flow app access to all listed data. Then open Apple's ECG recording app on Apple Watch and follow its instructions for a good signal.
• Samsung Galaxy Watch: Download the "Breathe Flow" Wear OS app on the Play Store on your Watch. Use it to do the recordings. Keep BREATHE FLOW live on your phone.
• Withings ECG Watches: Open the Withings "Health Mate" app on the phone. Keep BREATHE FLOW live. Record according to Withings instructions.
• Follow the instructions how to do the ECG recording. Start by inhaling calmly for 5 seconds, then exhale for 5 seconds. Continue this breathing pattern for 30 seconds (3 cycles of controlled breathing).
• ECG quality improves when you sit by a table.
Hold your hands and elbows on the table. Let your breathing and pulse calm down before doing the test. Follow the smartwatch instructions and test again if the ECG recording is bad.
• Swipe down on the Breathe Flow home screen to activate download and analysis.
• Wait for about 10 seconds until analysis appears on the Breathe Flow app. Swipe down again to update the Breathe Flow screen. (Time delay is depending on network speed)
• Answer the Q&A in English to receive a summary analysis and unlock Breathe Pulse.
• We recommend doing at least three BREATHE FLOW tests daily to learn how your actions impact your health and to collect high quality data for your V-NFT.
VAGUS® non fungible tokens (V-NFT) are standardized ring-fenced and anonymized data packages, each consisting of 10 unique days of VAGUS® tests, your Q&A text, other data from your smartwatch, and data generated by VAGUS® analytics. We will automatically register a non-blockchained V-NFT when you have done at least 10 days of testing. You find your ownership- and reward tokens in the VAGUS® Wallet.
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
MEDICAL DISCLAIMER: The BREATHE FLOW app, its test and the analysis data or advice are not medical diagnostics tools and they should not be used as such.
For more information visit: We strongly recommend reading our blogs and follow the vlogs for further information. If you want to track historical data and get more analytics information from the test; subscribe to the Vagus Nerve Explorer feature through the app's settings

What’s New

Version 1.0.11

Chat and charts improvements

Ratings and Reviews

4.0 out of 5
3 Ratings

3 Ratings

Marina Petratos ,

Doesn’t detect breathing pattern

I get notification after notification that this app didn’t detect my breathing pattern even though I am performing the EKG at the same time as I am following the breathing demo in the app (5sec inhale, 5sec exhale)
I don’t know what’s wrong with this app.

Developer Response ,

Hi Marina, I am happy to see that you have done more than 100 tests mostly with our other app - the BREATHE ECG. We can see that you perform controlled breathing in at most 5% of the tests and only then does it analyze your vagal tone. That is the science behind our test. Only when doing 5 sec/5sec breathing does the vagus nerve activate and we can analyse your health. The vast majority of your tests are done with faster shallow breathing and hence we cannot establish proper vagal tone analytics. The basics for the analytix s is respiratory/cardiac synchronization by the vagus nerve and this is activated only at slower breathing. The 'breathe detect' feedback is for tell you when you successfully perform diaphragmatic breathing. The goal of our apps is to teach users to do healthy breathing. Please put your questions to if you have problems with how to use our apps. Hopefully, you can also then get a benefit from Breathe Flow and train to perform diaphragmatic deep breathing with 5 sec inhale and 5 sec exhale breathing practice. Have a great day, The VAGUS team

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:

  • Location
  • Contact Info
  • Identifiers
  • Usage Data
  • Sensitive Info
  • Diagnostics

Data Not Linked to You

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

  • Health & Fitness

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

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