# PerfectFast vs ArcFast

The clearest difference is in-app purchases: PerfectFast at none against ArcFast's 2. PerfectFast also leads on update cadence (every 10 days vs every 6 weeks). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. ArcFast sells 2 in-app purchases, starting at $4.99 per month. PerfectFast asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for PerfectFast against 5.0 for ArcFast. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

PerfectFast ships an update every 10 days, ArcFast every 6 weeks. The most recent releases landed on October 3, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | PerfectFast | ArcFast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/perfectfast/id6759067877/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/arcfast-fasting-tracker/id6760943015/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 6 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 27 MB | 13 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Idan Lupinsky](https://appshunter.io/developer/1876630037) | [KYRYL PEKAROV](https://appshunter.io/developer/1886950842) |

## What reviewers say

### PerfectFast

[App page](https://appshunter.io/ios/app/perfectfast/id6759067877)

This app helps you track intermittent and extended fasting periods with a clean, focused interface. It supports various fasting schedules, custom durations, and provides detailed history and statistics to monitor your progress.

**Highlights:** Intermittent and extended fast tracking, Custom fasting schedules, Fasting history and statistics, Reminders and notifications, Apple Watch companion app, Live Activity support

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

**In-app purchases:** none


### ArcFast

[App page](https://appshunter.io/ios/app/arcfast-fasting-tracker/id6760943015)

Track your intermittent fasting with a simple, ad-free timer. Monitor your metabolic phase, view progress charts, and customize your fasting schedule. Includes meal calorie estimates and home screen widgets.

**Highlights:** Ad-free intermittent fasting timer, Real-time metabolic phase tracking, Fasting streaks and progress charts, Customizable fasting schedules, Home screen widgets, Meal calorie estimation

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Yearly | $39.99 | per year |


## Frequently asked questions

### Is PerfectFast free?

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

### Is ArcFast free?

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

### Which has better reviews, PerfectFast or ArcFast?

PerfectFast and ArcFast are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do PerfectFast or ArcFast have ads?

Neither PerfectFast nor ArcFast shows ads.

### Which is updated more often, PerfectFast or ArcFast?

PerfectFast ships an update every 10 days, and ArcFast every 6 weeks. Most recently, PerfectFast was updated on October 3, 2026 and ArcFast on September 27, 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.*