# H2 flow water fasting vs ActiveTime Buddy

The clearest difference is rating: ActiveTime Buddy at 5.0 against H2 flow water fasting's 3.4. ActiveTime Buddy also leads on update cadence (every 11 days vs monthly). H2 flow water fasting's advantage is monetization model (free vs free with in-app purchases). On price, ratings volume, ads and in-app purchases 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 ActiveTime Buddy sells 7 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ActiveTime Buddy holds the better App Store score, 5.0 against 3.4. Both are backed by a comparable volume of ratings — 5 and 2 respectively.

H2 flow water fasting ships an update monthly, ActiveTime Buddy every 11 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | H2 flow water fasting | ActiveTime Buddy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (5 ratings)](https://appshunter.io/ios/app/h2-flow-water-fasting/id6752329005/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/activetime-buddy/id6756629853/reviews)** |
| Number of ratings | **5** | 2 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 11 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 57 MB | 50 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Martijn Nelissen](https://appshunter.io/developer/1837721404) | [Do Not Get Abstracted Studios, LLC](https://appshunter.io/developer/1837702339) |

## 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 |


### ActiveTime Buddy

[App page](https://appshunter.io/ios/app/activetime-buddy/id6756629853)

This app helps children develop healthier screen time habits by prompting regular breaks. It offers a variety of activity suggestions to encourage movement, creativity, and tidiness during downtime.

**Highlights:** Smart screen break reminders, Idea generator for off-screen activities, Activity categories: Move, Help, Create, Learn, Tidy, Reset, Promotes positive habit building, Designed for families

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ActiveTime Buddy Pro | $0.99 | per month |
| Move pack | $2.99 | one-time |
| Help Pack | $2.99 | one-time |
| Create Pack | $2.99 | one-time |
| Learn Pack | $2.99 | one-time |
| Tidy Pack | $2.99 | one-time |
| Reset Pack | $2.99 | one-time |


## Frequently asked questions

### Is H2 flow water fasting free?

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

### Is ActiveTime Buddy free?

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

### Which has better reviews, H2 flow water fasting or ActiveTime Buddy?

ActiveTime Buddy is rated higher. H2 flow water fasting averages 3.4 out of 5 from 5 ratings, while ActiveTime Buddy averages 5.0 from 2 ratings.

### Do H2 flow water fasting or ActiveTime Buddy have ads?

Neither H2 flow water fasting nor ActiveTime Buddy shows ads.

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

H2 flow water fasting ships an update monthly, and ActiveTime Buddy every 11 days. Most recently, H2 flow water fasting was updated on October 24, 2026 and ActiveTime Buddy on October 25, 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.*