# FastLyfe vs Fasting Window

The clearest difference is in-app purchases: Fasting Window at none against FastLyfe's 3. FastLyfe's advantage is update cadence (every 6 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. FastLyfe sells 3 in-app purchases, starting at $5.99 per month. Fasting Window asks for nothing beyond the download.

FastLyfe ships an update every 6 weeks, Fasting Window every 4 months. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | FastLyfe | Fasting Window |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Size | 31 MB | 20 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cayden Williams](https://appshunter.io/developer/1870369963) | [HeungYeol Kim](https://appshunter.io/developer/1878087341) |

## What reviewers say

### FastLyfe

[App page](https://appshunter.io/ios/app/fastlyfe-fasting-tracker/id6762158215)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $5.99 | per month |
| Yearly | $16.99 | per year |
| Lifetime Pro | $29.99 | one-time |


### Fasting Window

[App page](https://appshunter.io/ios/app/fasting-window-if-timer/id6774622599)

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

**In-app purchases:** none


## Frequently asked questions

### Is FastLyfe free?

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

### Is Fasting Window free?

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

### Do FastLyfe or Fasting Window have ads?

Neither FastLyfe nor Fasting Window shows ads.

### Which is updated more often, FastLyfe or Fasting Window?

FastLyfe ships an update every 6 weeks, and Fasting Window every 4 months. Most recently, FastLyfe was updated on October 6, 2026 and Fasting Window on October 13, 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.*