# iFast vs Intermittent Fasting

The clearest difference is in-app purchases: iFast at none against Intermittent Fasting's 4. iFast also leads on update cadence (every 3 days vs every 2 weeks). Intermittent Fasting's advantage is rating (4.9 vs 4.7) and review sentiment (100% vs 86%). On price, ratings volume, ads and monetization model there is nothing between them.

Both are free to download. Intermittent Fasting sells 4 in-app purchases, starting at $2.99 per month. iFast asks for nothing beyond the download.

Intermittent Fasting holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 23 and 11 respectively. Written reviews point the same way: 86% of iFast's written reviews are positive against 100% of Intermittent Fasting's.

iFast ships an update every 3 days, Intermittent Fasting every 2 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | iFast | Intermittent Fasting |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (23 ratings)](https://appshunter.io/ios/app/ifast-simple-fast-tracker/id1670053693/reviews) | **[4.9 (11 ratings)](https://appshunter.io/ios/app/intermittent-fasting-justfast/id6752963711/reviews)** |
| Number of ratings | **23** | 11 |
| Positive reviews | 85.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Every 2 weeks |
| Monetization | Ad-supported | Ad-supported |
| Size | 62 MB | 126 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Manu Mehrotra](https://appshunter.io/developer/1607252474) | [Adrian Cabala](https://appshunter.io/developer/1841708643) |

## What reviewers say

### iFast

[App page](https://appshunter.io/ios/app/ifast-simple-fast-tracker/id1670053693)

This app helps you track your fasting periods and monitor your progress towards your health goals. It supports various popular fasting methods, including circadian rhythm fasting and intermittent fasting schedules.

**Highlights:** Track fasting periods, Monitor progress, Support for popular fasting types, Circadian rhythm fasting, Intermittent fasting schedules, Custom prolonged fasts

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

**In-app purchases:** none


### Intermittent Fasting

[App page](https://appshunter.io/ios/app/intermittent-fasting-justfast/id6752963711)

This app tracks both your fasting periods and your eating windows, offering a unique dual-countdown feature. It visualizes metabolic phases like fat burning and ketosis, supports various fasting methods, and provides insights into your progress. It's designed to be user-friendly and privacy-conscious, working entirely offline.

**Highlights:** Eating window countdown, Fasting phases visualization, Support for multiple fasting methods, Streak tracking with grace periods, Pattern insights, Weight and BMI tracking, Smart notifications, 100% offline functionality

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Just Fast Plus monthly | $2.99 | per month |
| Just Fast Plus | $14.99 | per year |
| Just Fast Plus | $14.99 | per year |
| Just Fast Plus Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is iFast free?

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

### Is Intermittent Fasting free?

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

### Which has better reviews, iFast or Intermittent Fasting?

Intermittent Fasting is rated higher. iFast averages 4.7 out of 5 from 23 ratings, while Intermittent Fasting averages 4.9 from 11 ratings.

### Do iFast or Intermittent Fasting have ads?

Both iFast and Intermittent Fasting show ads.

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

iFast ships an update every 3 days, and Intermittent Fasting every 2 weeks. Most recently, iFast was updated on November 3, 2026 and Intermittent Fasting on November 5, 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.*