# iRetroMuse vs Retro Spectrum

The clearest difference is in-app purchases: iRetroMuse at none against Retro Spectrum's 1. Retro Spectrum's advantage is ads (none vs shown) and iOS requirement (16.0 vs 26.5). On price, update cadence and device support there is nothing between them.

Both are free to download. Retro Spectrum sells 1 one-off in-app purchase. iRetroMuse asks for nothing beyond the download.

iRetroMuse ships an update monthly, Retro Spectrum every 3 weeks. The most recent releases landed on October 14, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | iRetroMuse | Retro Spectrum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (6 ratings)](https://appshunter.io/ios/app/retro-spectrum/id6780568680/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 4 MB |
| Requires iOS | 26.5 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kouki Yoshimoto](https://appshunter.io/developer/1884780659) | [TAKUMA FUJITSUKA](https://appshunter.io/developer/6780568682) |

## What reviewers say

### iRetroMuse

[App page](https://appshunter.io/ios/app/iretromuse/id6770200570)

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

**In-app purchases:** none


### Retro Spectrum

[App page](https://appshunter.io/ios/app/retro-spectrum/id6780568680)

Transform your phone into a retro audio visualizer for your car or desk. It analyzes sound from your speakers in real-time, displaying dynamic visuals inspired by classic 80s-90s car stereos. Enjoy multiple retro skins and track identification for a unique audio-visual experience.

**Highlights:** Real-time spectrum analyzer, Retro 80s-90s car stereo style, Listens via microphone to any speaker source, Multiple retro skin options, Now Playing song identification, Desk mode with clock and date

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Skin Pack | $1.99 | one-time |


## Frequently asked questions

### Is iRetroMuse free?

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

### Is Retro Spectrum free?

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

### Do iRetroMuse or Retro Spectrum have ads?

iRetroMuse shows ads; Retro Spectrum does not.

### Which is updated more often, iRetroMuse or Retro Spectrum?

iRetroMuse ships an update monthly, and Retro Spectrum every 3 weeks. Most recently, iRetroMuse was updated on October 14, 2026 and Retro Spectrum on October 6, 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.*