# ScaleGen vs Mix Bus Compressor

The clearest difference is rating: ScaleGen at 4.7 against Mix Bus Compressor's 3.9. ScaleGen also leads on price ($3.99 vs $5.99). Mix Bus Compressor's advantage is update cadence (every 6 weeks vs every 29 months) and device support (3 vs 1). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

ScaleGen costs $3.99 and Mix Bus Compressor $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ScaleGen holds the better App Store score, 4.7 against 3.9. Both are backed by a comparable volume of ratings — 12 and 8 respectively. Written reviews complicate that: 71% of ScaleGen's written reviews are positive against 75% of Mix Bus Compressor's, so the app with the better star average is not the one people write more warmly about.

ScaleGen ships an update every 29 months, Mix Bus Compressor every 6 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ScaleGen | Mix Bus Compressor |
| --- | --- | --- |
| Price | **$3.99** | $5.99 |
| Rating | **[4.7 (12 ratings)](https://appshunter.io/ios/app/scalegen/id908056629/reviews)** | [3.9 (8 ratings)](https://appshunter.io/ios/app/mix-bus-compressor/id1467711076/reviews) |
| Number of ratings | **12** | 8 |
| Positive reviews | 70.6% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 6 weeks** |
| Monetization | Paid | Paid |
| Size | 14 MB | 25 MB |
| Requires iOS | **10.0** | 10.2 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gestrument AB](https://appshunter.io/developer/576235485) | [Blue Mangoo Consulting Company Limited](https://appshunter.io/developer/1475107602) |

## What reviewers say

### ScaleGen

[App page](https://appshunter.io/ios/app/scalegen/id908056629)

Generate and edit musical scales with intricate detail. Explore traditional and experimental tunings, audition your creations, and export them as MIDI files or to other applications. Ideal for composers and students seeking to expand their musical horizons.

**Highlights:** Generate and manipulate musical scales, Detailed scale definition and editing, Audition scales within the app, Export as MIDI or to Gestrument, Predefined scales from various traditions, Explore microtonal and experimental tunings

**In-app purchases:** none


### Mix Bus Compressor

[App page](https://appshunter.io/ios/app/mix-bus-compressor/id1467711076)

This audio plugin offers ultra-transparent compression with exceptionally low harmonic distortion. Its unique design provides immediate response without adding latency or phase distortion, making it ideal for real-time audio processing. The scalable interface ensures a clear visual experience on all iOS devices.

**Highlights:** Ultra-low harmonic distortion, Unique envelope follower, Immediate response time, No added latency, No phase distortion, Scalable user interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ScaleGen free?

ScaleGen costs $3.99, with no in-app purchases.

### Is Mix Bus Compressor free?

Mix Bus Compressor costs $5.99, with no in-app purchases.

### Which has better reviews, ScaleGen or Mix Bus Compressor?

ScaleGen is rated higher. ScaleGen averages 4.7 out of 5 from 12 ratings, while Mix Bus Compressor averages 3.9 from 8 ratings.

### Do ScaleGen or Mix Bus Compressor have ads?

Neither ScaleGen nor Mix Bus Compressor shows ads.

### Which is updated more often, ScaleGen or Mix Bus Compressor?

ScaleGen ships an update every 29 months, and Mix Bus Compressor every 6 weeks. Most recently, ScaleGen was updated on October 26, 2026 and Mix Bus Compressor on October 24, 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.*