# Fast vs Intermittent Timer

The clearest difference is in-app purchases: Fast at none against Intermittent Timer's 1. Fast also leads on update cadence (every 2 days vs every 3 weeks). Intermittent Timer's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Intermittent Timer sells 1 in-app purchase, starting at $0.99 per month. Fast asks for nothing beyond the download.

Fast ships an update every 2 days, Intermittent Timer every 3 weeks. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Fast | Intermittent Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/intermittent-timer/id6770408325/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 49 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Invotek AS](https://appshunter.io/developer/1836667478) | [Michael Bright](https://appshunter.io/developer/1868302526) |

## What reviewers say

### Fast

[App page](https://appshunter.io/ios/app/fast-e-intermittent-fasting/id6759206116)

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

**In-app purchases:** none


### Intermittent Timer

[App page](https://appshunter.io/ios/app/intermittent-timer/id6770408325)

This app helps you build healthy habits with a simple and flexible fasting timer. Track your progress, receive smart notifications, and visualize your fasting and eating windows with elegant design and home screen widgets. It focuses on consistency without unnecessary complexity.

**Highlights:** Flexible fasting timer, Smart notifications, Visual progress timeline, Home screen widgets, Progress & trends tracking, Fasting history, iCloud sync

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Intermittent Timer Premium | $0.99 | per month |


## Frequently asked questions

### Is Fast free?

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

### Is Intermittent Timer free?

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

### Do Fast or Intermittent Timer have ads?

Neither Fast nor Intermittent Timer shows ads.

### Which is updated more often, Fast or Intermittent Timer?

Fast ships an update every 2 days, and Intermittent Timer every 3 weeks. Most recently, Fast was updated on October 1, 2026 and Intermittent Timer on October 7, 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.*