# Intermittent Fasting vs Zero Fast

The clearest difference is in-app purchases: Intermittent Fasting at none against Zero Fast's 2. Intermittent Fasting also leads on ratings volume (5 vs 1) and iOS requirement (17.6 vs 26.0). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Zero Fast sells 2 in-app purchases, starting at $6.99 per month. Intermittent Fasting asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Intermittent Fasting against 5.0 for Zero Fast. That said, the two scores are not equally well evidenced: Intermittent Fasting has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Intermittent Fasting ships an update every 8 days, Zero Fast every 2 weeks. Both last shipped on October 3, 2026.

## The numbers

| Metric | Intermittent Fasting | Zero Fast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/intermittent-fasting-if24/id6738324344/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/zero-fast-fasting-tracker/id6748047745/reviews) |
| Number of ratings | **5** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 2 weeks |
| Monetization | Paid | **Freemium** |
| Size | 5 MB | 35 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [LEONID NIFANTIJEV](https://appshunter.io/developer/1253349827) | [APPE LATTE LIMITED](https://appshunter.io/developer/1480686912) |

## What reviewers say

### Intermittent Fasting

[App page](https://appshunter.io/ios/app/intermittent-fasting-if24/id6738324344)

Track your intermittent fasting routine with this intuitive app. It offers features for both beginners and experienced fasters to maintain a successful fasting schedule.

**Highlights:** Intermittent fasting tracker, Beginner-friendly interface, Supports experienced practitioners, Intuitive routine maintenance, Health journey transformation

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

**In-app purchases:** none


### Zero Fast

[App page](https://appshunter.io/ios/app/zero-fast-fasting-tracker/id6748047745)

Track your intermittent fasting journey with an AI-powered coach. Get personalized plans, real-time metabolic insights, and science-backed education to support your weight management and metabolic health goals. Log hydration, weight, and mood to optimize your fasting experience.

**Highlights:** AI Fasting Coach, Personalized weekly fasting plans, Multiple fasting profiles, Real-time metabolic tracking, Hydration logging, Weight and progress dashboard, Apple Health integration

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zero Fast Monthly | $6.99 | per month |
| Zero Fast Annually | $49.99 | per year |


## Frequently asked questions

### Is Intermittent Fasting free?

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

### Is Zero Fast free?

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

### Which has better reviews, Intermittent Fasting or Zero Fast?

Intermittent Fasting and Zero Fast are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.

### Do Intermittent Fasting or Zero Fast have ads?

Neither Intermittent Fasting nor Zero Fast shows ads.

### Which is updated more often, Intermittent Fasting or Zero Fast?

Intermittent Fasting ships an update every 8 days, and Zero Fast every 2 weeks. Most recently, Intermittent Fasting was updated on October 3, 2026 and Zero Fast on October 3, 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.*