# Rhythm Fasting vs ArcFast

The clearest difference is price: ArcFast at Free against Rhythm Fasting's $9.99. Rhythm Fasting's advantage is update cadence (every 3 days vs every 6 weeks). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

ArcFast is free to download; Rhythm Fasting costs $9.99 up front. Rhythm Fasting sells 3 one-off in-app purchases 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.

Rhythm Fasting ships an update every 3 days, ArcFast every 6 weeks. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Rhythm Fasting | ArcFast |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/arcfast-fasting-tracker/id6760943015/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 6 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 36 MB | 13 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Piyush Ahuja](https://appshunter.io/developer/1884806570) | [KYRYL PEKAROV](https://appshunter.io/developer/1886950842) |

## What reviewers say

### Rhythm Fasting

[App page](https://appshunter.io/ios/app/rhythm-fasting-if-tracker/id6760611132)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Helping developer | $4.99 | one-time |
| Amazing Tip | $9.99 | one-time |


### 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 Rhythm Fasting free?

Rhythm Fasting costs $9.99, and also offers in-app purchases.

### Is ArcFast free?

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

### Do Rhythm Fasting or ArcFast have ads?

Neither Rhythm Fasting nor ArcFast shows ads.

### Which is updated more often, Rhythm Fasting or ArcFast?

Rhythm Fasting ships an update every 3 days, and ArcFast every 6 weeks. Most recently, Rhythm Fasting was updated on October 11, 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.*