# Fasting Timer by TrainerDay vs JustFast

The clearest difference is ratings volume: Fasting Timer by TrainerDay at 12 against JustFast's 1. Fasting Timer by TrainerDay also leads on iOS requirement (15.1 vs 18.0). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Fasting Timer by TrainerDay against 5.0 for JustFast. That said, the two scores are not equally well evidenced: Fasting Timer by TrainerDay has 12 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | Fasting Timer by TrainerDay | JustFast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (12 ratings)](https://appshunter.io/ios/app/fasting-timer-by-trainerday/id6758466061/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/justfast-timer/id6775042519/reviews) |
| Number of ratings | **12** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | Free | Free |
| Size | 30 MB | 20 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [TrainerDay Inc](https://appshunter.io/developer/1816950052) | [Vitalii Vyrodov](https://appshunter.io/developer/1588698342) |

## What reviewers say

### 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


### JustFast

[App page](https://appshunter.io/ios/app/justfast-timer/id6775042519)

This app offers a straightforward intermittent fasting timer. It focuses on tracking your fast with a clear, calm interface, providing insights into metabolic stages without gamification or pressure. It prioritizes privacy with on-device data storage and no accounts.

**Highlights:** One-tap start and stop, Live timer with accurate timekeeping, Metabolic milestone tracking, Plain-language explanations of milestones, Adjustable start/stop times, Ongoing notification for duration, Simple history of past fasts, 18 languages and dark design

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

**In-app purchases:** none


## Frequently asked questions

### Is Fasting Timer by TrainerDay free?

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

### Is JustFast free?

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

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

Fasting Timer by TrainerDay and JustFast are both rated 5.0 out of 5 on the App Store, from 12 and 1 ratings respectively.

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

Neither Fasting Timer by TrainerDay nor JustFast shows ads.

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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.*