# Ritm vs Centro Estetico Amethyste

The clearest difference is update cadence: Ritm at every 2 months against Centro Estetico Amethyste's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Ritm ships an update every 2 months, Centro Estetico Amethyste every 9 months. The most recent releases landed on October 13, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Ritm | Centro Estetico Amethyste |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 9 months |
| Monetization | Free | — |
| Size | 105 MB | 3 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Carlo Baout](https://appshunter.io/developer/1514766558) | [STRATEGYFOR SRL](https://appshunter.io/developer/1587370422) |

## What reviewers say

### Ritm

[App page](https://appshunter.io/ios/app/ritm-u/id1514766559)

Monitor and train your diaphragm's vertical movement to improve well-being and health. Create personalized breathing workouts and track your daily progress. Connect with Apple Watch for enhanced features like heart rate monitoring.

**Highlights:** Diaphragm vertical movement monitoring, Personalized breathing workouts, Progress tracking, Apple Watch integration, Heart rate monitoring

**Features:** Apple Watch app

**In-app purchases:** none


### Centro Estetico Amethyste

[App page](https://appshunter.io/ios/app/centro-estetico-amethyste/id6758089270)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ritm free?

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

### Is Centro Estetico Amethyste free?

Centro Estetico Amethyste is free to download, with no in-app purchases.

### Do Ritm or Centro Estetico Amethyste have ads?

Neither Ritm nor Centro Estetico Amethyste shows ads.

### Which is updated more often, Ritm or Centro Estetico Amethyste?

Ritm ships an update every 2 months, and Centro Estetico Amethyste every 9 months. Most recently, Ritm was updated on October 13, 2026 and Centro Estetico Amethyste on October 19, 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.*