# Lunar Fasting vs JustFast

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

Both are free to download. Lunar Fasting sells 2 in-app purchases, starting at $0.99 per 7 days. JustFast asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Lunar Fasting | JustFast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/justfast-timer/id6775042519/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | — | Free |
| Size | 9 MB | 20 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kirill Lukyanov](https://appshunter.io/developer/1896758125) | [Vitalii Vyrodov](https://appshunter.io/developer/1588698342) |

## What reviewers say

### Lunar Fasting

[App page](https://appshunter.io/ios/app/lunar-fasting-calorie-tracker/id6772260495)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro — Week | $0.99 | per 7 days |
| Pro — Year | $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 Lunar Fasting free?

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

### Is JustFast free?

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

### Do Lunar Fasting or JustFast have ads?

Neither Lunar Fasting nor JustFast shows ads.

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

Lunar Fasting ships an update fortnightly, and JustFast fortnightly. Most recently, Lunar Fasting was updated on October 31, 2026 and JustFast on October 31, 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.*