# Mersenne vs miRack

The clearest difference is in-app purchases: Mersenne at none against miRack's 5. Mersenne also leads on price ($8.00 vs $14.99) and iOS requirement (12.0 vs 14.0). miRack's advantage is update cadence (weekly vs monthly) and ratings volume (683 vs 28). On rating, review sentiment, ads and device support there is nothing between them.

Mersenne costs $8.00 and miRack $14.99 up front. miRack sells 5 one-off in-app purchases. Mersenne asks for nothing beyond the download.

miRack holds the better App Store score, 4.8 against 4.7. That said, the two scores are not equally well evidenced: miRack has 683 ratings behind it against 28, so its average is the more settled of the two. Written reviews complicate that: 88% of Mersenne's written reviews are positive against 86% of miRack's, so the app with the better star average is not the one people write more warmly about.

Mersenne ships an update monthly, miRack weekly. The most recent releases landed on November 2, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | Mersenne | miRack |
| --- | --- | --- |
| Price | **$8.00** | $14.99 |
| Rating | [4.7 (28 ratings)](https://appshunter.io/ios/app/mersenne-auv3-plug-in-synth/id1084197093/reviews) | **[4.8 (683 ratings)](https://appshunter.io/ios/app/mirack/id1468259834/reviews)** |
| Number of ratings | 28 | **683** |
| Positive reviews | **87.5% of reviews** | 85.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 11 MB | 359 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [iceWorks, Inc.](https://appshunter.io/developer/347507439) | [MIFKI PTY LTD](https://appshunter.io/developer/316521224) |

## What reviewers say

### Mersenne

[App page](https://appshunter.io/ios/app/mersenne-auv3-plug-in-synth/id1084197093)

This app is an AUv3-compatible synthesizer designed to create bell-like metallic sounds. It combines FM synthesis, a noise generator, and a resonator for crafting clear tones and complex metallic textures.

**Highlights:** AUv3-compatible synthesizer, Dual FM synthesis modules, Noise generator, Resonator, Metallic sound design, Bell-like tones

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

**In-app purchases:** none


### miRack

[App page](https://appshunter.io/ios/app/mirack/id1468259834)

This app offers a comprehensive Eurorack-style modular synthesizer environment for creating custom synths, audio/MIDI effects, and controlling other applications. It features a vast library of modules and integrates with hardware and software for flexible music production and live performance.

**Highlights:** Polyphonic Eurorack-style modular environment, Over 800 third-party modules, AUv3 plugin hosting, Multi-channel audio input/output, MIDI input/output with clock sync, Ableton Link support, iCloud patch syncing

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |
| AUv3 Hosting Modules | $4.99 | one-time |
| Controller Module | $4.99 | one-time |

**What reviewers like**

- 🚀 Powerful modular synth capabilities
- 👍 Intuitive touch-based interface
- 🎨 Vast selection of modules
- 💰 Great value for the price
- 🔌 Seamless integration with external controllers

**What reviewers complain about**

- 🐛 Occasional crashes and stability issues
- 📚 Lack of built-in documentation and tutorials
- 🔀 Difficulty navigating and managing patches
- 🔇 Missing audio recording and export features

**Reported bugs**

- Knob controls sometimes become unresponsive
- Saving and loading patches can be unreliable
- Compatibility issues with older iPad models

**Requested features**

- Add polyphonic support
- Implement undo/redo functionality
- Integrate with popular DAWs and audio apps
- Provide more comprehensive module library
- Add preset management and sharing options


## Frequently asked questions

### Is Mersenne free?

Mersenne costs $8.00, with no in-app purchases.

### Is miRack free?

miRack costs $14.99, and also offers in-app purchases.

### Which has better reviews, Mersenne or miRack?

miRack is rated higher. Mersenne averages 4.7 out of 5 from 28 ratings, while miRack averages 4.8 from 683 ratings.

### Do Mersenne or miRack have ads?

Neither Mersenne nor miRack shows ads.

### Which is updated more often, Mersenne or miRack?

Mersenne ships an update monthly, and miRack weekly. Most recently, Mersenne was updated on November 2, 2026 and miRack on November 11, 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.*