Breathe Flow vs SPPPFFy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Breathe Flow
This app analyzes your breathing and heart rate using smartwatch ECG data to provide insights into your health. It offers guidance on improving breathing, reducing stress, and understanding how lifestyle factors impact your well-being. The app also introduces data ownership through VAGUS tokens.
- 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
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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'. **** With this app we also launch the VAGUS® wallet and ownership tokens, which enable data ownership and rewards for the data. *** 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 **** 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. **** 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. **** 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 **** 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: 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
SPPPFFy
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Most of us sense when something's off — we just can't see the whole picture. SPPPFFy gives you that picture: a structured audit across the six pillars of a balanced life. THE SIX PILLARS Spiritual · Physical · Personal · Professional · Financial · Family & Friends HOW IT WORKS Take the Life Audit — a guided assessment covering sleep, purpose, relationships, career, money, and more. In minutes, see where you're thriving and where you're quietly running on empty. SEE THE CONNECTIONS, NOT JUST THE SCORES SPPPFFy doesn't just hand you six numbers. Our AI analyst looks at how your pillars interact — like a demanding career pulling your physical health down — and writes a personal, plain-language summary of what your results actually mean for you. SET YOUR VISION, TRACK THE PATH THERE Define what you want your life to look like a year from now, and get recommendations tied directly to that vision. Log your mood, journal your reflections, and set goals — each one connected to the pillar it supports. STAY ON TRACK Gentle reminders for check-ins and re-audits keep your picture of yourself current, not a one-time snapshot. WHAT YOU GET • A structured six-pillar Life Audit assessment • AI-generated insights connecting your results across pillars • Personalized recommendations based on your scores and priorities • Mood tracking and private journaling • Goal-setting tied to your life vision • Periodic re-audits to track progress over time Your life, audited honestly — so you can grow deliberately.
Screenshots
Verdict
The clearest difference is in-app purchases: SPPPFFy at none against Breathe Flow's 2. SPPPFFy also leads on update cadence (weekly vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Breathe Flow sells 2 in-app purchases, starting at $4.49 per month. SPPPFFy asks for nothing beyond the download.
Breathe Flow ships an update every 3 weeks, SPPPFFy weekly. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.
| Parameter | Breathe Flow | SPPPFFy |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (4 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 14.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 62 MB | 39 MB |
| Age rating | 4+ | 12+ |
| Developer | Vagus Health Ltd | A. Vittal Consulting Inc. |
In-app purchases
Breathe Flow
- HRV & Breathing Sync Analytics3 Days trial$4.491 Month
- V-NFT add on$0.99
SPPPFFy
No in-app purchases









