# Fast vs Intermittent Fasting

The clearest difference is in-app purchases: Fast at none against Intermittent Fasting's 2. Fast also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 2 months). Intermittent Fasting's advantage is iOS requirement (13.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. Intermittent Fasting sells 2 in-app purchases, starting at $3.99 per month. Fast asks for nothing beyond the download.

Fast ships an update every 2 weeks, Intermittent Fasting every 2 months. The most recent releases landed on August 18, 2026 and August 14, 2026 respectively.

## The numbers

| Metric | Fast | Intermittent Fasting |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/intermittent-fasting-tracker/id6754178036/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | — | Ad-supported |
| Size | 22 MB | 35 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CodeHive](https://appshunter.io/developer/1196672412) | [JanoGroup LLC](https://appshunter.io/developer/1781461557) |

## What reviewers say

### Fast

[App page](https://appshunter.io/ios/app/fast-intermittent-fasting/id6741595659)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Intermittent Fasting

[App page](https://appshunter.io/ios/app/intermittent-fasting-tracker/id6754178036)

Easily track your fasting journey with a simple timer and customizable plans. Monitor progress with stats, streaks, and a calendar to support weight loss and consistent intermittent fasting.

**Highlights:** Simple fasting timer, Popular fasting plans (16:8, OMAD, custom), Stats, streaks, and progress tracking, Fasting calendar and history, Smart reminders

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly - Premium | $3.99 | per month |
| Annual - Premium | $24.99 | per year |


## Frequently asked questions

### Is Fast free?

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

### Is Intermittent Fasting free?

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

### Do Fast or Intermittent Fasting have ads?

Intermittent Fasting shows ads; Fast does not.

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

Fast ships an update every 2 weeks, and Intermittent Fasting every 2 months. Most recently, Fast was updated on August 18, 2026 and Intermittent Fasting on August 14, 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.*