# MUUM vs Ridian Preview

The clearest difference is in-app purchases: Ridian Preview at none against MUUM's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. MUUM sells 4 in-app purchases, starting at $10.00 per month. Ridian Preview asks for nothing beyond the download.

MUUM ships an update every 2 weeks, Ridian Preview weekly. The most recent releases landed on October 31, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | MUUM | Ridian Preview |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Freemium | — |
| Size | 306 MB | 74 MB |
| Requires iOS | 18.2 | **18.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | +4 | 4+ |
| Developer | [MUUM](https://appshunter.io/developer/1812016108) | [Ubique Innovation AG](https://appshunter.io/developer/404813835) |

## What reviewers say

### MUUM

[App page](https://appshunter.io/ios/app/muum-breathwork/id6745403683)

This app guides users through short, nasal breathing exercises to improve energy, calm, and focus. It offers real-time biofeedback and integrates with health platforms. Designed by Swiss engineers, it aims to enhance daily well-being through mindful breathing.

**Highlights:** Guided nasal breathing sessions, Real-time biofeedback (HRV, HR), Breath tracking with visual feedback, Coherence breathing patterns, Integration with Garmin & Apple Health, Progress tracking, Monthly new rituals

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MUUM | $10.00 | per month |
| MUUM | $16.99 | per month |
| MUUM | $29.99 | per year |
| MUUM | $69.99 | per year |


### Ridian Preview

[App page](https://appshunter.io/ios/app/ridian-preview/id6769035546)

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

**In-app purchases:** none


## Frequently asked questions

### Is MUUM free?

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

### Is Ridian Preview free?

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

### Do MUUM or Ridian Preview have ads?

Neither MUUM nor Ridian Preview shows ads.

### Which is updated more often, MUUM or Ridian Preview?

MUUM ships an update every 2 weeks, and Ridian Preview weekly. Most recently, MUUM was updated on October 31, 2026 and Ridian Preview on November 13, 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.*