# Intermittent Fasting vs Fasting Timer by TrainerDay

The clearest difference is in-app purchases: Fasting Timer by TrainerDay at none against Intermittent Fasting's 4. Fasting Timer by TrainerDay also leads on ads (none vs shown). On price, rating, review sentiment and ratings volume there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for Intermittent Fasting against 4.9 for Fasting Timer by TrainerDay. Both are backed by a comparable volume of ratings — 11 and 20 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

## The numbers

| Metric | Intermittent Fasting | Fasting Timer by TrainerDay |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (11 ratings)](https://appshunter.io/ios/app/intermittent-fasting-justfast/id6752963711/reviews)** | [4.9 (20 ratings)](https://appshunter.io/ios/app/fasting-timer-by-trainerday/id6758466061/reviews) |
| Number of ratings | 11 | **20** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | — |
| Monetization | Ad-supported | **Free** |
| Size | 126 MB | 30 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Adrian Cabala](https://appshunter.io/developer/1841708643) | [TrainerDay Inc](https://appshunter.io/developer/1816950052) |

## What reviewers say

### 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 |


### Fasting Timer by TrainerDay

[App page](https://appshunter.io/ios/app/fasting-timer-by-trainerday/id6758466061)

This app simplifies intermittent fasting with a one-tap start and customizable durations. Track your progress visually and review your fasting history. It's designed for easy habit building without complex features.

**Highlights:** One-tap fast start, Customizable fasting durations, Flexible start times, Visual progress tracking, Fasting history, Shareable results

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

**In-app purchases:** none


## Frequently asked questions

### Is Intermittent Fasting free?

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

### Is Fasting Timer by TrainerDay free?

Fasting Timer by TrainerDay is free to download, with no in-app purchases.

### Which has better reviews, Intermittent Fasting or Fasting Timer by TrainerDay?

Intermittent Fasting is rated higher. Intermittent Fasting averages 4.9 out of 5 from 11 ratings, while Fasting Timer by TrainerDay averages 4.9 from 20 ratings.

### Do Intermittent Fasting or Fasting Timer by TrainerDay have ads?

Intermittent Fasting shows ads; Fasting Timer by TrainerDay does not.

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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.*