# Intermittent Fasting vs FastingWindow

The clearest difference is update cadence: FastingWindow at every 2 days against Intermittent Fasting's fortnightly. Intermittent Fasting's advantage is iOS requirement (18 vs 26.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Intermittent Fasting sells 3 in-app purchases, starting at $4.99 per month and FastingWindow sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Intermittent Fasting ships an update fortnightly, FastingWindow every 2 days. The most recent releases landed on September 10, 2026 and June 25, 2026 respectively.

## The numbers

| Metric | Intermittent Fasting | FastingWindow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/fastingwindow/id6769170324/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 8 MB | 5 MB |
| Requires iOS | **18** | 26.4 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 4+ |
| Developer | [Karol Jaworski](https://appshunter.io/developer/1799974477) | [Moon Labs LLC](https://appshunter.io/developer/1896635888) |

## What reviewers say

### Intermittent Fasting

[App page](https://appshunter.io/ios/app/intermittent-fasting-window/id6760733395)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Window Pro Monthly | $4.99 | per month |
| Window Pro Intro Year | $39.99 | per year |
| Window Pro Yearly | $39.99 | per year |


### FastingWindow

[App page](https://appshunter.io/ios/app/fastingwindow/id6769170324)

This app offers a straightforward method for tracking intermittent fasting. It visualizes your fasting progress with a live ring and details the five metabolic stages your body goes through. Understand your body's response during fasting with clear explanations.

**Highlights:** Simple fasting tracking, Live progress ring, Five metabolic stage explanations, No account required, No subscription needed, Real-time progress monitoring

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Forever | $2.99 | one-time |


## Frequently asked questions

### Is Intermittent Fasting free?

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

### Is FastingWindow free?

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

### Do Intermittent Fasting or FastingWindow have ads?

Neither Intermittent Fasting nor FastingWindow shows ads.

### Which is updated more often, Intermittent Fasting or FastingWindow?

Intermittent Fasting ships an update fortnightly, and FastingWindow every 2 days. Most recently, Intermittent Fasting was updated on September 10, 2026 and FastingWindow on June 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.*