Factory vs miRack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Factory
Create complex and organic sounds with a powerful modular synthesizer. Explore a vast array of synthesis types, a deep modulation matrix, and dynamic signal flow. Easily find and morph between sounds with a built-in browser and crossfader.
- Modular synthesis with extensive modulation matrix
- Multiple oscillator engines and synthesis types
- Dynamic signal flow with 3-FX chain
- Morph crossfader for sound transformation
- Preset browser with tagging and rating
- Sequencers, Arpeggiator, and Quantizer
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Made for complex and organic sounds, Factory sports a big modulation matrix with all kinds of features to create a wildlife of sounds. A vast array of DSP is ready to play: Analog style oscillators and filters, but also different flavors of wavetable synthesis, Wavetable driven Waveguide resonators and a 3-FX-Chain in a dynamic signal flow. With the Morph crossfader, sounds can be changed drastically, but always musically. The Preset Browser with tags and rating makes finding sounds easy and fun. Don´t miss out on super sonic modular mayhem and check Factory today! Key Features: • Poly Synth with Mod-Matrix and Sequencers • 2x10 Oscillator Engines • Sub-Oscillator with Ringmodulation • Noise Generator with 5 colors • 8-voice VA-Sync, Wavetable, Waveguide & Fractal Synthesis • 8x10 Mod Matrix with 36 targets • Morph Fader, 2 States & Copy/Paste • Envelopes and LFOs • Sample & Hold Modul • 4x Sequencers for all kinds of Gates and CV's, incl. 36 motion curves, uni/bipolar. • Arpeggiator, Intonation engine, Scale Quantizer • 11 Filter models & 3x Multi-Effect with drag 'n' drop signal flow • Audio Unit v3 & Standalone • Virtual, Network, External & Bluetooth MIDI • Ableton Link • MIDI Learn & Host Automation • Preset iCloud Sync • Preset Share
miRack
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.
- 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
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miRack is a polyphonic Eurorack-style modular environment. It aims to provide user experience and audio quality close to those of the real Eurorack hardware. miRack can be used to build custom synthesizers, audio and MIDI effects, control other apps and equipment, as a playground to explore and learn modular synths, and for live performances. miRack is also available on macOS, including Audio Unit and VST plugins. * Comes with more than 800 modules created by third-party developers and adapted for mobile devices by miRack team. New modules are added regularly. * Includes AUv3 plugin. Can work as an instrument, audio effect or MIDI processor. Supports parameter automation to record and automate changes of almost any virtual module control. * AUv3 hosting capabilities (in-app purchase). Incorporate any AUv3 instrument, effect or MIDI effect plugins into your patches. * Controller module (in-app purchase) allows to design AUv3 user interface for your patch. * Multi-channel audio input and output (in both standalone and AUv3 modes), with full support for Expert Sleepers audio interface modules to integrate with hardware Eurorack equipment. * MIDI input and output, including MIDI clock sync, and MIDI learn function. Automate and control your patch, or control other software and hardware instruments with powerful sequencer modules. * Ableton Link support to synchronise with other music software on the same device or over network. * iCloud support to sync patches between iOS and macOS app versions. * Visit patchstorage.com/platform/mirack for inspiration and to share your patches.
Screenshots
Verdict
The clearest difference is price: Factory at Free against miRack's $14.99. miRack's advantage is update cadence (weekly vs every 4 months) and device support (4 vs 1). On rating, review sentiment, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Factory is free to download; miRack costs $14.99 up front. Factory sells 1 one-off in-app purchase and miRack sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.9 for Factory against 4.8 for miRack. Both are backed by a comparable volume of ratings — 488 and 681 respectively. Written reviews are what separate them: 81% of Factory's written reviews are positive against 86% of miRack's.
Factory ships an update every 4 months, miRack weekly. The most recent releases landed on October 17, 2026 and October 22, 2026 respectively.
| Parameter | Factory | miRack |
|---|---|---|
| Price | Free — better | $14.99 |
| Rating | 4.9 (488 ratings) — better | 4.8 (681 ratings) |
| Positive reviews | 81.4% of reviews | 85.9% of reviews — better |
| Number of ratings | 488 | 681 — better |
| Update frequency | Every 4 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 17.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 351 MB | 359 MB |
| Age rating | 4+ | 4+ |
| Developer | Sugar Bytes GmbH | MIFKI PTY LTD |
Customer experience
Factory
miRack
User reviews
Factory
From 488 App Store ratingsWhat we love
- 🚀 Powerful synth engine
- 👍 Intuitive and easy to use interface
- 🎨 Vast sound design capabilities
- 💡 Innovative modulation matrix
- 🎶 Inspiring and unique presets
Room to improve
- 🐛 Occasional crashes and freezes
- 🔌 Compatibility issues with other apps
- 🖥️ Pixelated interface on high-res displays
- 🔇 Note-sticking problems
miRack
From 681 App Store ratingsWhat we love
- 🚀 Powerful modular synth capabilities
- 👍 Intuitive touch-based interface
- 🎨 Vast selection of modules
- 💰 Great value for the price
- 🔌 Seamless integration with external controllers
Room to improve
- 🐛 Occasional crashes and stability issues
- 📚 Lack of built-in documentation and tutorials
- 🔀 Difficulty navigating and managing patches
- 🔇 Missing audio recording and export features
Bugs and requests
Factory
Reported bugs
2 issues- Presets not loading correctly in DAW projects
- CC assignment issues causing controls to freeze
Requested features
4 requests- Ability to modulate morph slider
- Option to modulate effects parameters individually
- Arpeggiator with retrigger on key press
- Better integration with GarageBand and other DAWs
miRack
Reported bugs
3 issues- Knob controls sometimes become unresponsive
- Saving and loading patches can be unreliable
- Compatibility issues with older iPad models
Requested features
5 requests- 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
In-app purchases
Factory
- Factory Full Version$24.99
miRack
- Small Tip$0.99
- Medium Tip$2.99
- Large Tip$4.99
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- AUv3 Hosting Modules$4.99
- Controller Module$4.99









