# Rhythm vs iFast

The clearest difference is ads: Rhythm at none against iFast's shown. Rhythm also leads on ratings volume (454 vs 22) and monetization model (free vs ad-supported). iFast's advantage is update cadence (every 3 days vs every 13 months) and iOS requirement (15.1 vs 17.6). On price, rating, review sentiment and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.7 for Rhythm against 4.6 for iFast. That said, the two scores are not equally well evidenced: Rhythm has 454 ratings behind it against 22, so its average is the more settled of the two. Written reviews are what separate them: 89% of Rhythm's written reviews are positive against 86% of iFast's.

Rhythm ships an update every 13 months, iFast every 3 days. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Rhythm | iFast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (454 ratings)](https://appshunter.io/ios/app/rhythm-fasting-tracker/id1377199450/reviews)** | [4.6 (22 ratings)](https://appshunter.io/ios/app/ifast-simple-fast-tracker/id1670053693/reviews) |
| Number of ratings | **454** | 22 |
| Positive reviews | **88.5% of reviews** | 85.7% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Every 3 days** |
| Monetization | **Free** | Ad-supported |
| Size | 3 MB | 62 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Bijan Cronin](https://appshunter.io/developer/1377199449) | [Manu Mehrotra](https://appshunter.io/developer/1607252474) |

## What reviewers say

### Rhythm

[App page](https://appshunter.io/ios/app/rhythm-fasting-tracker/id1377199450)

This app simplifies intermittent fasting with a daily tracker. It supports various fasting schedules, from beginner-friendly to advanced, and helps users monitor their progress over time. Get notifications when your fast is complete.

**Highlights:** Daily fasting tracker, Flexible schedule support, Weekly progress tracking, Customizable fasting goals, One-click start, Progress monitoring, Completion notifications

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 💎 Simple and easy to use
- 🆓 Free app with no ads or subscriptions
- ⏱️ Straightforward fasting timer
- 📊 Tracks fasting progress
- 🔍 Allows editing of start/end times

**What reviewers complain about**

- ⏰ Can't track fasts longer than 24 hours
- 📅 Limited history view (only past week)
- 🔔 Lacks customizable notifications/reminders

**Reported bugs**

- Can't add past fasts
- Inconsistent weekly progress tracking

**Requested features**

- Ability to track longer fasts (e.g., 48-72 hours)
- Option to view fasting history beyond the past week
- Customizable notifications and reminders
- Integration with health/fitness tracking apps
- Weight tracking and progress visualization


### iFast

[App page](https://appshunter.io/ios/app/ifast-simple-fast-tracker/id1670053693)

This app helps you track your fasting periods and monitor your progress towards your health goals. It supports various popular fasting methods, including circadian rhythm fasting and intermittent fasting schedules.

**Highlights:** Track fasting periods, Monitor progress, Support for popular fasting types, Circadian rhythm fasting, Intermittent fasting schedules, Custom prolonged fasts

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

**In-app purchases:** none


## Frequently asked questions

### Is Rhythm free?

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

### Is iFast free?

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

### Which has better reviews, Rhythm or iFast?

Rhythm is rated higher. Rhythm averages 4.7 out of 5 from 454 ratings, while iFast averages 4.6 from 22 ratings.

### Do Rhythm or iFast have ads?

iFast shows ads; Rhythm does not.

### Which is updated more often, Rhythm or iFast?

Rhythm ships an update every 13 months, and iFast every 3 days. Most recently, Rhythm was updated on October 15, 2026 and iFast on October 9, 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.*