# Breathe Flow

> Smartwatch ECG analysis for breathing, health insights, and data ownership. (iPhone/iPad app by Vagus Health Ltd.)

- Source: https://appshunter.io/ios/app/breathe-flow/id1598116167 (this page in markdown: same URL + `.md`)
- Developer: [Vagus Health Ltd](https://appshunter.io/developer/1502988847)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Rating: 3.75/5 from 4 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.1 · 62 MB
- Languages: English
- Released: 2022-09-07
- Data updated: 2026-06-11
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/breathe-flow/id1598116167/reviews.md

## What is Breathe Flow?

WHY BREATHE FLOW?
• 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'.
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With this app we also launch the VAGUS® wallet and ownership tokens, which enable data ownership and rewards for the data.
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ON WHICH WATCH CAN I DO BREATHE FLOW TEST?
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
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INSTRUCTIONS FOR YOUR 1ST TEST:
• 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.
• Withings ECG Watches: Open the Withings "Health Mate" app on the phone. Keep BREATHE FLOW live. Record according to Withings instructions.
VAGUS® TEST:
• 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.
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DATA OWNERSHIP with VAGUS TOKENS.
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.
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WHAT OTHERS SAY ABOUT THE VAGUS® ANALYTICS:
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
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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.
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For more information visit: www.vagus.co. 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

## Key features

- 30-second ECG test for breathing analysis
- Personalized advice for breathing and stress reduction
- Smartwatch data ownership with VAGUS tokens
- VAGUS® ideal breathing curve guidance
- Analysis of food, drink, and sleep impact on health
- HRV & Breathing Sync Analytics subscription

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| HRV & Breathing Sync Analytics | $4.49 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| V-NFT add on | $0.99 | one-time |


## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/breathe-flow/id1598116167/reviews.md

### 5/5 — Very insightful if used right, part of my routine now

*2024-09-30*

Love this app and all the feedback it has to provide about my breathing depth, heart rate fluxes based off my breathing and how I can improve a bit more everyday using deep breathing techniques and comes with the AI powered chat for extra information and breakdown which is awesome!

### 5/5 — Very insightful if used right, part of my routine now

*2023-11-21*

Love this app and all the feedback it has to provide about my breathing depth, heart rate fluxes based off my breathing and how I can improve a bit more everyday using deep breathing techniques and comes with the AI powered chat for extra information and breakdown which is awesome!

### 4/5 — Interesting app which would be much better if user could setup length of inspiration & expiration

*2023-02-05*

A novel app which I find interesting - but I find the required breathing rate too fast, and my curves don’t look smooth. 

I would be nice if users could breath normally and the app could pick up their respiratory rate. Or, alternatively, if users could create custom breathing patterns. 

It would also help having more comprehensive explanations of what it all means. 

Thank you!

### 2/5 — Doesn’t detect breathing pattern

*2023-01-30*

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 info@vagus.co 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

## Frequently asked questions about Breathe Flow

### What is Breathe Flow?

Breathe Flow is a health and fitness app that uses your smartwatch's ECG signal to analyze your breathing patterns and heart rate variability. It provides insights into your cardiac and respiratory health, offering guidance on stress reduction and lifestyle improvements.

### What devices are compatible with Breathe Flow?

Breathe Flow is compatible with smartwatches that have an ECG sensor, including Apple Watch Series 4 and newer (excluding SE), Samsung Galaxy Watch 4 and newer, and Withings ECG watches. It also supports iPhone and iPod.

### How accurate is the ECG test in Breathe Flow?

The app relies on your smartwatch's ECG sensor for data. For optimal ECG quality, it's recommended to sit by a table, rest your hands and elbows, and let your breathing and pulse calm down before starting the 30-second test. The app provides instructions for good signal recording.

### Does Breathe Flow have ads?

No, Breathe Flow does not contain advertisements. The app is free to use for its core features, with optional in-app purchases for advanced analytics.

### What are VAGUS tokens and data ownership?

VAGUS tokens are non-fungible tokens (V-NFTs) that represent standardized, anonymized data packages. These packages include your VAGUS test results, Q&A responses, smartwatch data, and VAGUS analytics. The app automatically registers a V-NFT when you complete at least 10 days of testing, enabling data ownership and potential rewards.

### What is the subscription plan for Breathe Flow?

Breathe Flow offers an 'HRV & Breathing Sync Analytics' subscription for $4.49 per month, which includes a 3-day free trial. This plan likely provides enhanced analysis and synchronization features for your health data.

### How often should I use Breathe Flow?

The developers recommend doing at least three Breathe Flow tests daily. This frequency helps you learn how your daily actions impact your health and allows for the collection of high-quality data for your V-NFT.

### What age rating is Breathe Flow?

Breathe Flow has an age rating of 4+. This indicates it is suitable for users aged four and above, suggesting content that is generally appropriate for children and adults.

## Version history (last 5 releases)

### 1.0.13 — 2024-06-13

Bug fixes and Historical ECG data retrieval for longer term analytics and diagnostics.

### 1.0.12 — 2023-11-21

- bug fixes

### 1.0.11 — 2023-05-20

Chat and charts improvements

### 1.0.10 — 2023-04-28

More advanced chat
Many improvements

### 1.0.9 — 2023-03-17

6 new charts for HRV & Breathing Sync Analytics

## Apps similar to Breathe Flow

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## More apps by Vagus Health Ltd

- [Vagus Watch](https://appshunter.io/ios/app/vagus-watch/id1502988848)
- [Vagus ECG](https://appshunter.io/ios/app/vagus-ecg/id1521235525)
- [Breathe ECG](https://appshunter.io/ios/app/breathe-ecg/id1581772482)

All apps by Vagus Health Ltd: https://appshunter.io/developer/1502988847

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-11.*