# Muzz vs Müller

The clearest difference is price: Müller at Free against Muzz's $12.99. Müller also leads on iOS requirement (12.0 vs 15.0). Muzz's advantage is ads (none vs shown) and update cadence (fortnightly vs every 9 months). On in-app purchases and device support there is nothing between them.

Müller is free to download; Muzz costs $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Muzz ships an update fortnightly, Müller every 9 months. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Muzz | Müller |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/muzz-audio-spectrum-analyzer/id6443873744/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 9 months |
| Monetization | Paid | — |
| Size | 19 MB | 30 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Amit Nadir](https://appshunter.io/developer/808729036) | [SOCIA LABO, K.K.](https://appshunter.io/developer/1688326248) |

## What reviewers say

### Muzz

[App page](https://appshunter.io/ios/app/muzz-audio-spectrum-analyzer/id6443873744)

Analyze audio signals with 21 different spectrum analyzers. Visualize fundamental frequencies, harmonics, and feedback for both beginners and experts. Supports loading audio files or using live microphone input.

**Highlights:** 21 spectrum analyzer types, Load audio files, Live audio mode, Dark and light modes, Peak enhancer

**Features:** Vision Pro support

**In-app purchases:** none


### Müller

[App page](https://appshunter.io/ios/app/muller-lyer-illusion-app/id6450165949)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Muzz free?

Muzz costs $12.99, with no in-app purchases.

### Is Müller free?

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

### Do Muzz or Müller have ads?

Müller shows ads; Muzz does not.

### Which is updated more often, Muzz or Müller?

Muzz ships an update fortnightly, and Müller every 9 months. Most recently, Muzz was updated on October 24, 2026 and Müller on October 10, 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.*