# Fasting Timer vs JustFast

The clearest difference is in-app purchases: JustFast at none against Fasting Timer's 2. On price, update cadence, ads and device support there is nothing between them.

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

Fasting Timer ships an update every 11 days, JustFast fortnightly. The most recent releases landed on September 29, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Fasting Timer | JustFast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/justfast-timer/id6775042519/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 11 days** | Fortnightly |
| Monetization | — | Free |
| Size | 7 MB | 20 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Nicolas Dojcilovic](https://appshunter.io/developer/1890278667) | [Vitalii Vyrodov](https://appshunter.io/developer/1588698342) |

## What reviewers say

### Fasting Timer

[App page](https://appshunter.io/ios/app/fasting-timer-fastclear/id6762476052)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FastClear Pro Monthly | $3.99 | per month |
| FastClear Pro Yearly | $24.99 | per year |


### 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 free?

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

### Is JustFast free?

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

### Do Fasting Timer or JustFast have ads?

Neither Fasting Timer nor JustFast shows ads.

### Which is updated more often, Fasting Timer or JustFast?

Fasting Timer ships an update every 11 days, and JustFast fortnightly. Most recently, Fasting Timer was updated on September 29, 2026 and JustFast on September 28, 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.*