# miRack vs Fluss

The clearest difference is in-app purchases: Fluss at none against miRack's 5. Fluss also leads on price ($13.99 vs $14.99) and iOS requirement (12 vs 14.0). miRack's advantage is update cadence (weekly vs every 3 months) and ratings volume (683 vs 71). On rating, review sentiment, ads and device support there is nothing between them.

miRack costs $14.99 and Fluss $13.99 up front. miRack sells 5 one-off in-app purchases. Fluss asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for miRack against 4.8 for Fluss. That said, the two scores are not equally well evidenced: miRack has 683 ratings behind it against 71, so its average is the more settled of the two. Written reviews are what separate them: 86% of miRack's written reviews are positive against 78% of Fluss's.

miRack ships an update weekly, Fluss every 3 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | miRack | Fluss |
| --- | --- | --- |
| Price | $14.99 | **$13.99** |
| Rating | **[4.8 (683 ratings)](https://appshunter.io/ios/app/mirack/id1468259834/reviews)** | [4.8 (71 ratings)](https://appshunter.io/ios/app/fluss-granular-playground/id6443472888/reviews) |
| Number of ratings | **683** | 71 |
| Positive reviews | **85.9% of reviews** | 78.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 359 MB | 453 MB |
| Requires iOS | 14.0 | **12** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MIFKI PTY LTD](https://appshunter.io/developer/316521224) | [Bram Bos](https://appshunter.io/developer/325340444) |

## What reviewers say

### 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


### Fluss

[App page](https://appshunter.io/ios/app/fluss-granular-playground/id6443472888)

Explore granular synthesis with a tactile interface. Import, record, or live-process audio to create unique sound textures, drones, and echoes. Features kinetic sliders for dynamic modulation and a unique shimmer feedback effect.

**Highlights:** Granular synthesis engine, Import, record, or live process audio, Kinetic sliders for modulation, Shimmer feedback effect, MIDI playable, Oberheim Xpander inspired filter, Microtonal experiment support

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💡 Innovative touch interface
- 🎶 Great for soundscapes
- ✨ Unique sound manipulation
- 🎛️ Intuitive controls
- 🎵 Highly playable instrument

**What reviewers complain about**

- 🐛 Crashes frequently
- ⚫ Black screen issue
- 🎧 No audible output
- 🎛️ Not enough control
- 😵 Too much chaos

**Reported bugs**

- Crashes with black screen
- No audible output
- App resets when put in background
- Cyan play head difficult to see on waveform

**Requested features**

- Adjustable layer field per grain
- Record from internal microphone
- More control over grain direction
- BPM settings
- Transition from clean to new sounds


## Frequently asked questions

### Is miRack free?

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

### Is Fluss free?

Fluss costs $13.99, with no in-app purchases.

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

miRack is rated higher. miRack averages 4.8 out of 5 from 683 ratings, while Fluss averages 4.8 from 71 ratings.

### Do miRack or Fluss have ads?

Neither miRack nor Fluss shows ads.

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

miRack ships an update weekly, and Fluss every 3 months. Most recently, miRack was updated on November 3, 2026 and Fluss on November 3, 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.*