# H2 flow water fasting — your water-fast companion

> Water fasting companion for preparation, hydration, and mindful progress tracking. (iPhone/iPad app by Martijn Nelissen.)

- Source: https://appshunter.io/ios/app/h2-flow-water-fasting/id6752329005 (this page in markdown: same URL + `.md`)
- Developer: [Martijn Nelissen](https://appshunter.io/developer/1837721404)
- Category: Health & Fitness, Food & Drink
- Price: Free with in-app purchases
- Rating: 3.00/5 from 4 App Store ratings · 2 written reviews indexed
- Age rating: 17+
- Requires: iOS 16.4 · 57 MB
- Languages: American English
- Released: 2025-10-22
- Data updated: 2026-08-25
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/h2-flow-water-fasting/id6752329005/reviews.md

## What is H2 flow water fasting?

Unlock the full potential of water fasting with H₂flow — designed with insights from experienced fasting practitioners to help you prepare, stay mindful, and celebrate every milestone. Whether you’re completing your first 24-hour fast or optimizing multi-day protocols, H₂flow supports your journey with hydration tracking, mindful guidance, and science-based tools for metabolic renewal.

Important Disclaimer:
H₂flow is intended for informational and wellness purposes only. It does not provide medical advice and is not a substitute for professional medical consultation, diagnosis, or treatment. Always seek the advice of your physician or another qualified healthcare provider before starting any fasting program, making dietary changes, or making decisions related to your health.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Hydration tracking
- Mindful guidance
- Science-based tools
- Fasting preparation
- Milestone celebration
- Metabolic renewal support

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| H2Flow Pro Yearly | $24.99 | per year |
| H2Flow Pro Monthly | $2.99 | per month |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/h2-flow-water-fasting/id6752329005/reviews.md

### 1/5 — Nope.

*2026-03-01*

I was excited to see this app, until I installed it. First problem, water is in ml not oz. Seriously do not have time to convert my water intake from oz to ml. Second issue and why I deleted the app, there is no way to edit your start time for fasting if you forget to start the counter. Wasted time and storage on my phone.

### 5/5 — Ml to oz option?

*2026-02-20*

This is a very nice app … I was wondering if we could have the option to choose between ml and ounces? I would be most grateful

## Frequently asked questions about H2 flow water fasting

### What is H2 flow water fasting?

H2 flow water fasting is a companion app designed to help users prepare for, stay mindful during, and celebrate milestones in their water fasting journey. It provides hydration tracking and science-based tools for metabolic renewal.

### Is H2 flow water fasting free to use?

Yes, H2 flow water fasting is available for free. The app does not have any associated costs for download or use.

### What devices does H2 flow water fasting support?

H2 flow water fasting is compatible with iPhone, iPad, and iPod devices. It is designed for the iOS ecosystem.

### Does H2 flow water fasting provide medical advice?

No, H2 flow water fasting is intended for informational and wellness purposes only. It does not provide medical advice and users should always consult a healthcare professional before starting any fasting program.

### How often is H2 flow water fasting updated?

The latest version of H2 flow water fasting is 1.1.2, and it was last updated on November 18, 2025. Updates are released periodically to improve functionality and add features.

### What is the age rating for H2 flow water fasting?

H2 flow water fasting has an age rating of 17+. This indicates that the content is suitable for users aged 17 and older.

### Can H2 flow water fasting help with multi-day fasts?

Yes, H2 flow water fasting is designed to support users whether they are completing their first 24-hour fast or optimizing multi-day protocols. It offers guidance and tracking for various fasting durations.

### Does H2 flow water fasting have ads?

No, H2 flow water fasting does not contain advertisements. The app is ad-free, providing an uninterrupted user experience.

## Version history (last 5 releases)

### 1.2.6 — 2026-08-19

- Bug fixes after onboarding 
- Simplified onboarding experience
- Improved error messages for login
- Fixed password reset
- Recurring fasting schedules in planner

### 1.2.4 — 2026-08-18

Stability update for iOS 26.

Fixes startup crashes on newer iPhones and restores the fasting timer controls.

### 1.2.3 — 2026-07-07

- Several bug fixes
- Newly added features
- New design

### 1.2.2 — 2026-05-26

Bug fixes.

### 1.2.1 — 2026-05-23

Bug fixes.

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| --- | --- | --- | --- |
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## More apps by Martijn Nelissen

- [CandL: learn trading](https://appshunter.io/ios/app/candl-learn-trading/id6755659864)
- [Ranking your Friends](https://appshunter.io/ios/app/ranking-your-friends/id6757341921)
- [TasteMap - travel](https://appshunter.io/ios/app/tastemap-travel/id6761728662)

All apps by Martijn Nelissen: https://appshunter.io/developer/1837721404

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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 2026-08-25.*