# IF vs ArcFast

The clearest difference is ads: ArcFast at none against IF's shown. ArcFast also leads on rating (5.0 vs 4.8). IF's advantage is ratings volume (2.7K vs 1) and device support (4 vs 1). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. IF sells 14 in-app purchases, starting at $9.99 per month and ArcFast sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ArcFast holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: IF has 2.7K ratings behind it against 1, so its average is the more settled of the two.

IF ships an update every 3 weeks, ArcFast every 6 weeks. The most recent releases landed on October 29, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | IF | ArcFast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (2.7K ratings)](https://appshunter.io/ios/app/if-intermittent-fasting-168/id1442203676/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/arcfast-fasting-tracker/id6760943015/reviews)** |
| Number of ratings | **2.7K** | 1 |
| Positive reviews | 61.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Freemium | Free with in-app purchases |
| Size | 172 MB | 13 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [5W APPS GmbH](https://appshunter.io/developer/528547598) | [KYRYL PEKAROV](https://appshunter.io/developer/1886950842) |

## What reviewers say

### IF

[App page](https://appshunter.io/ios/app/if-intermittent-fasting-168/id1442203676)

This app simplifies intermittent fasting for weight loss and improved health. It offers personalized meal plans, a fasting tracker with reminders, and a supportive community. Achieve your fitness goals without restrictive dieting.

**Highlights:** Fasting tracker with customizable intervals, Personalized meal plans and recipes, Water intake reminders, Weight and measurement tracking, Motivational features and community support, Daily lessons and expert advice

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month premium | $9.99 | per month |
| 1 month premium | $12.49 | per month |
| Premium discount | $12.99 | per 3 months |
| Premium discount | $14.49 | per 3 months |
| 3 months premium | $22.99 | per 3 months |
| 3 months premium | $24.99 | per 3 months |
| 12 months premium | $39.99 | per year |
| 12 months premium | $49.99 | per year |
| 12 months premium | $59.99 | per year |
| Lifetime | $4.99 | one-time |
| Lifetime | $14.99 | one-time |
| Lifetime | $16.99 | one-time |
| Lifetime | $19.99 | one-time |
| Easy Keto | $19.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Helpful notifications
- 💡 Engaging and motivating
- 😊 Favorite intermittent fasting app
- 👍 Simple to follow

**What reviewers complain about**

- 🐛 Buggy and unreliable
- 🐛 Conversion and calendar issues
- 🐛 Inconsistent time changes
- 💰 Paid version not worth it
- 🐛 Login and access problems

**Reported bugs**

- App locking up and not resetting
- Losing premium version after update
- App not working after one day of use
- Paid version not granting access

**Requested features**

- More guidance on the overall process
- Apple Watch companion app
- Improved nutrition section and recipes
- Manual time adjustment option


### 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 IF free?

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

### Is ArcFast free?

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

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

ArcFast is rated higher. IF averages 4.8 out of 5 from 2.7K ratings, while ArcFast averages 5.0 from 1 ratings.

### Do IF or ArcFast have ads?

IF shows ads; ArcFast does not.

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

IF ships an update every 3 weeks, and ArcFast every 6 weeks. Most recently, IF was updated on October 29, 2026 and ArcFast on October 12, 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.*