# Fasting interval 16 vs Window

The clearest difference is review sentiment: Window at 100% against Fasting interval 16's 50%. Fasting interval 16's advantage is in-app purchases (none vs 1) and iOS requirement (11.0 vs 17.6). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Window sells 1 one-off in-app purchase. Fasting interval 16 asks for nothing beyond the download.

Fasting interval 16 ships an update weekly, Window every 9 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Fasting interval 16 | Window |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/window-fasting-timer/id6757469789/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Free | Free |
| Size | 25 MB | 7 MB |
| Requires iOS | **11.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Dirk Storjohann](https://appshunter.io/developer/1456635825) | [发发 道](https://appshunter.io/developer/1812431550) |

## What reviewers say

### Fasting interval 16

[App page](https://appshunter.io/ios/app/fasting-interval-168/id1494623370)

This app helps you track your intermittent fasting schedule. Simply input your fasting start time, and it will monitor your progress and notify you when your fasting interval concludes. It's designed to support your intermittent fasting journey.

**Highlights:** Intermittent fasting tracking, Fasting start time input, Fasting interval end notification, Supports 16:8 fasting schedule, Proven effectiveness support

**Features:** macOS Compatibility

**In-app purchases:** none


### Window

[App page](https://appshunter.io/ios/app/window-fasting-timer/id6757469789)

This intermittent fasting timer helps you build healthy eating habits with real-time progress tracking and motivational animations. View your fasting status on the Lock Screen and Dynamic Island without opening the app. Track your history, streaks, and success rate with local data storage and no ads.

**Highlights:** One-tap fasting start, Real-time progress tracking, Dynamic Island & Live Activities integration, Preset and custom fasting durations, Fasting history and statistics, Local data storage

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Window Pro | $0.99 | one-time |


## Frequently asked questions

### Is Fasting interval 16 free?

Fasting interval 16 is free to download, with no in-app purchases.

### Is Window free?

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

### Do Fasting interval 16 or Window have ads?

Neither Fasting interval 16 nor Window shows ads.

### Which is updated more often, Fasting interval 16 or Window?

Fasting interval 16 ships an update weekly, and Window every 9 days. Most recently, Fasting interval 16 was updated on November 3, 2026 and Window on October 31, 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.*