# H2 flow water fasting vs Sunwick

The clearest difference is ads: H2 flow water fasting at none against Sunwick's shown. H2 flow water fasting also leads on iOS requirement (16.4 vs 18.4). On price, update cadence, in-app purchases 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 and Sunwick sells 2 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

H2 flow water fasting ships an update monthly, Sunwick every 5 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | H2 flow water fasting | Sunwick |
| --- | --- | --- |
| 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 | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free | — |
| Size | 57 MB | 40 MB |
| Requires iOS | **16.4** | 18.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Martijn Nelissen](https://appshunter.io/developer/1837721404) | [DansUGC LLC](https://appshunter.io/developer/1858109642) |

## What reviewers say

### 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 |


### Sunwick

[App page](https://appshunter.io/ios/app/sunwick-fasting-timer-and-clock/id6759115542)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription. | $5.99 | per 7 days |
| Yearly Subscription. | $49.99 | per year |


## Frequently asked questions

### Is H2 flow water fasting free?

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

### Is Sunwick free?

Sunwick is free to download, with in-app purchases available.

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

Sunwick shows ads; H2 flow water fasting does not.

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

H2 flow water fasting ships an update monthly, and Sunwick every 5 weeks. Most recently, H2 flow water fasting was updated on October 24, 2026 and Sunwick on October 28, 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.*