# miRack vs 531sampler

The clearest difference is price: 531sampler at $2.99 against miRack's $14.99. 531sampler also leads on in-app purchases (none vs 5). miRack's advantage is chart position (#177 vs unranked) and device support (4 vs 1). On update cadence and ads there is nothing between them.

miRack costs $14.99 and 531sampler $2.99 up front. miRack sells 5 one-off in-app purchases. 531sampler asks for nothing beyond the download.

miRack ships an update weekly, 531sampler every 4 days. The most recent releases landed on October 13, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | miRack | 531sampler |
| --- | --- | --- |
| Price | $14.99 | **$2.99** |
| Rating | **[4.8 (674 ratings)](https://appshunter.io/ios/app/mirack/id1468259834/reviews)** | — |
| Number of ratings | **674** | — |
| Positive reviews | 85.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#177** | — |
| Size | 359 MB | 2 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MIFKI PTY LTD](https://appshunter.io/developer/316521224) | [AKIHIKO YOSHIDA](https://appshunter.io/developer/1877362692) |

## What reviewers say

### miRack

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

**Currently charting:** #177 Top Paid · Music (US App Store)

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


### 531sampler

[App page](https://appshunter.io/ios/app/531sampler/id6807727804)

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

**In-app purchases:** none


## Frequently asked questions

### Is miRack free?

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

### Is 531sampler free?

531sampler costs $2.99, with no in-app purchases.

### Do miRack or 531sampler have ads?

Neither miRack nor 531sampler shows ads.

### Which is updated more often, miRack or 531sampler?

miRack ships an update weekly, and 531sampler every 4 days. Most recently, miRack was updated on October 13, 2026 and 531sampler on September 30, 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.*