# Fugue Machine vs Model 15 Modular Synthesizer

The clearest difference is price: Fugue Machine at $19.99 against Model 15 Modular Synthesizer's $29.99. Fugue Machine also leads on in-app purchases (none vs 11) and update cadence (every 8 days vs every 3 months). On rating, review sentiment, ratings volume and ads there is nothing between them.

Fugue Machine costs $19.99 and Model 15 Modular Synthesizer $29.99 up front. Model 15 Modular Synthesizer sells 11 one-off in-app purchases. Fugue Machine asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Fugue Machine against 4.9 for Model 15 Modular Synthesizer. Both are backed by a comparable volume of ratings — 624 and 898 respectively. Written reviews are what separate them: 90% of Fugue Machine's written reviews are positive against 86% of Model 15 Modular Synthesizer's.

Fugue Machine ships an update every 8 days, Model 15 Modular Synthesizer every 3 months. The most recent releases landed on October 29, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Fugue Machine | Model 15 Modular Synthesizer |
| --- | --- | --- |
| Price | **$19.99** | $29.99 |
| Rating | [4.9 (624 ratings)](https://appshunter.io/ios/app/fugue-machine-midi-sequencer/id1014191410/reviews) | **[4.9 (898 ratings)](https://appshunter.io/ios/app/model-15-modular-synthesizer/id1041465860/reviews)** |
| Number of ratings | 624 | **898** |
| Positive reviews | **90.3% of reviews** | 86.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 3 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 8 MB | 857 MB |
| Requires iOS | **12.0** | 12.4 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Alexandernaut](https://appshunter.io/developer/508173422) | [Moog Music Inc.](https://appshunter.io/developer/396776421) |

## What reviewers say

### Fugue Machine

[App page](https://appshunter.io/ios/app/fugue-machine-midi-sequencer/id1014191410)

This music sequencer uses multiple playheads to create complex melodic patterns inspired by Baroque and serialist composition techniques. Manipulate speed, direction, and pitch to generate unique soundscapes.

**Highlights:** Multi-playhead piano roll, Manipulate speed, direction, and pitch, Create complex melodic patterns, Inspired by Baroque and serialist music, Supports MIDI, AUv3 MIDI, Ableton Link, Inter-App Audio and Audiobus compatibility

**Features:** Vision Pro support

**In-app purchases:** none


### Model 15 Modular Synthesizer

[App page](https://appshunter.io/ios/app/model-15-modular-synthesizer/id1041465860)

This app recreates a legendary modular synthesizer for mobile devices. Explore its iconic modules, experiment with sound design, and create music with intuitive controls and advanced features.

**Highlights:** Iconic Moog module recreation, Monophonic and 4-voice polyphonic operation, Integrated Moog keyboard and ribbon controller, Sequencing arpeggiator, MIDI integration and external control, Looping recorder with overdubbing, AUv3 Audio Unit Extensions support

**Features:** Family Sharing, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Symbiotic Equations | Free | one-time |
| Synthesist Toolkit | Free | one-time |
| Angular Arps | $1.99 | one-time |
| Sonic Mayhem | $2.99 | one-time |
| Sinfonietta Sintesi | $2.99 | one-time |
| Psychotropic Synthesis | $2.99 | one-time |
| Alien Systems | $3.99 | one-time |
| Textural Points | $4.99 | one-time |
| Mid-Century Moog | $4.99 | one-time |
| Dynamic Drones | $4.99 | one-time |
| Mercurial Strategies | $5.99 | one-time |

**What reviewers like**

- 🚀 Incredible sound quality
- 👍 Authentic Moog emulation
- 💡 Great for learning modular synthesis
- 🎨 Beautiful and detailed interface
- 🎹 Expressive MIDI capabilities

**What reviewers complain about**

- 🐛 Occasional crashes and glitches
- 🔍 Difficult to navigate on smaller screens
- 🕹️ Challenging to patch and tweak
- 🔋 High CPU usage

**Reported bugs**

- Arpeggiator direction not working as expected
- Distortion and audio issues on latest iOS versions
- Incompatibility with certain DAWs

**Requested features**

- More in-depth tutorials
- Ability to customize module layout
- Zoom/overview option for entire system
- Expanded preset library
- Midi mapping for arpeggiator


## Frequently asked questions

### Is Fugue Machine free?

Fugue Machine costs $19.99, with no in-app purchases.

### Is Model 15 Modular Synthesizer free?

Model 15 Modular Synthesizer costs $29.99, and also offers in-app purchases.

### Which has better reviews, Fugue Machine or Model 15 Modular Synthesizer?

Model 15 Modular Synthesizer is rated higher. Fugue Machine averages 4.9 out of 5 from 624 ratings, while Model 15 Modular Synthesizer averages 4.9 from 898 ratings.

### Do Fugue Machine or Model 15 Modular Synthesizer have ads?

Neither Fugue Machine nor Model 15 Modular Synthesizer shows ads.

### Which is updated more often, Fugue Machine or Model 15 Modular Synthesizer?

Fugue Machine ships an update every 8 days, and Model 15 Modular Synthesizer every 3 months. Most recently, Fugue Machine was updated on October 29, 2026 and Model 15 Modular Synthesizer on November 1, 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.*