# InFuel vs H2 flow water fasting

The clearest difference is in-app purchases: InFuel at none against H2 flow water fasting's 2. H2 flow water fasting's advantage is update cadence (monthly vs every 10 months) and iOS requirement (16.4 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. H2 flow water fasting sells 2 in-app purchases, starting at $2.99 per month. InFuel asks for nothing beyond the download.

InFuel ships an update every 10 months, H2 flow water fasting monthly. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | InFuel | H2 flow water fasting |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.4 (5 ratings)](https://appshunter.io/ios/app/h2-flow-water-fasting/id6752329005/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Monthly** |
| Monetization | — | Free |
| Size | 2 MB | 57 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 17+ |
| Developer | [Fishybear LLC](https://appshunter.io/developer/386484263) | [Martijn Nelissen](https://appshunter.io/developer/1837721404) |

## What reviewers say

### InFuel

[App page](https://appshunter.io/ios/app/infuel/id6743775122)

**Features:** macOS Compatibility

**In-app purchases:** none


### H2 flow water fasting

[App page](https://appshunter.io/ios/app/h2-flow-water-fasting/id6752329005)

This app guides users through water fasting with hydration tracking and mindful prompts. It offers science-based tools to support metabolic renewal and help users achieve fasting goals, from short to multi-day protocols.

**Highlights:** Hydration tracking, Mindful guidance, Science-based tools, Fasting preparation, Milestone celebration, Metabolic renewal support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| H2Flow Pro Monthly | $2.99 | per month |
| H2Flow Pro Yearly | $24.99 | per year |


## Frequently asked questions

### Is InFuel free?

InFuel is free to download, with no in-app purchases.

### Is H2 flow water fasting free?

H2 flow water fasting is free to download, with in-app purchases available.

### Do InFuel or H2 flow water fasting have ads?

Neither InFuel nor H2 flow water fasting shows ads.

### Which is updated more often, InFuel or H2 flow water fasting?

InFuel ships an update every 10 months, and H2 flow water fasting monthly. Most recently, InFuel was updated on November 8, 2026 and H2 flow water fasting on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*