# Rhythm Fasting vs hæl

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

hæl is free to download; Rhythm Fasting costs $9.99 up front. Rhythm Fasting sells 3 one-off in-app purchases and hæl sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Rhythm Fasting ships an update every 3 days, hæl every 6 days. The most recent releases landed on October 11, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Rhythm Fasting | hæl |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/hl/id6778956802/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 6 days |
| Monetization | — | Free with in-app purchases |
| Size | 36 MB | 18 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Piyush Ahuja](https://appshunter.io/developer/1884806570) | [KI-GEN STUDIOS LLC](https://appshunter.io/developer/6778956804) |

## 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 |


### hæl

[App page](https://appshunter.io/ios/app/hl/id6778956802)

This app acts as a silent observer for your fasting periods and menstrual cycle, reflecting your body's natural rhythms through literary prose. It integrates with Apple Health to provide context-aware insights into your weight and fasting windows, offering a unique, non-prescriptive approach to wellness tracking.

**Highlights:** Fasting timer with literary observations, Menstrual cycle tracking via Apple Health, Phase-aware fasting window adjustments, Literary weight trend analysis, Weekly and monthly retrospective letters, On-device data privacy, Apple Watch and iPad support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| the full witness | $19.99 | one-time |


## Frequently asked questions

### Is Rhythm Fasting free?

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

### Is hæl free?

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

### Do Rhythm Fasting or hæl have ads?

Neither Rhythm Fasting nor hæl shows ads.

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

Rhythm Fasting ships an update every 3 days, and hæl every 6 days. Most recently, Rhythm Fasting was updated on October 11, 2026 and hæl on October 7, 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.*