# KQ MiniSynth Legacy — Modular Synthesizer

> Polyphonic modular synthesizer for sound design and music creation. (iPhone/iPad app by Ryouta Kira.)

- Source: https://appshunter.io/ios/app/kq-minisynth-legacy/id1070850573 (this page in markdown: same URL + `.md`)
- Developer: [Ryouta Kira](https://appshunter.io/developer/862984358)
- Category: Music
- Price: $11.99 with in-app purchases
- Rating: 4.80/5 from 24 App Store ratings · 33 written reviews indexed
- Age rating: +4
- Requires: iOS 12.4 · 10 MB
- Languages: American English, Japanese
- Released: 2016-01-09
- Data updated: 2026-08-23
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/kq-minisynth-legacy/id1070850573/reviews.md

## What is KQ MiniSynth Legacy?

### THIS IS A DEPRECATED PRODUCT. Get KQ MiniSynth 26 instead. ###
If you bought this app recently, you can request a refund.

KQ MiniSynth is a powerful polyphonic modular synthesizer.
This app allows you to create sounds by patching modules.
You can add/remove up to 100 modules at will. 
(Oscillators, Envelope Generators, Filters, and so on)
Of course, it depends on the capability of your device.

Modular system is also good for education use.
You can learn the role of various modules while patching those.

The Patch-Editing view supports zooming.
You can connect modules with taps easily.

71 Presets are included.
External and Virtual MIDI is Supported.
MIDI over Bluetooth LE is Supported (Act as a Central device).
Inter-App Audio is Supported.
Audiobus is Supported.
Ableton Link integration.
Includes an Audio Unit Extension (AUv3 Instrument).

FAQ:
Q: The output sounds too quiet.
A: Expression value(Ctrl #11) may be too small. Try to Tap "RESET" on I/O Panel. When it is not improved, try changing an option "Boost Velocities".

Q: The velocities seem to be ignored on Audio Unit.
A: If you want to enable the note velocity function in Audio Unit, try to turn off "Ignore Velocities" in the settings. (The default is enable because GarageBand sends velocities randomly.)

This app has the following modules.

Oscillator
- Oscillator Type A (Frequency Modulation)
- Oscillator Type B (Pulse Width Modulation)
- Super Saw Oscillator
- Low Frequency Oscillator
- LFO Type B (Tempo Synchronization)
- Noise Generator (White/Pink)

Mixer/Amplifier
- 4 Channel Mixer
- CV Mixer
- Crossfader
- Voltage-Controlled Amplifier
- Low Pass Gate
- Sample-and-Hold Amplifier
- Booster

Envelope/Logic
- Envelope Generator Type A
- Envelope Generator Type B
- Toggle
- Inverting Circuit
- Logical And (Series Switch)
- Logical Or (Parallel Switch)
- Polyphonic Or Gate
- Maximum/Minimum Selector

Modulator
- Curve Function
- Multiplier
- V/Oct Vibrator
- Keyboard Level Scaling
- Ring Modulator
- Wave Shaper

Filter/Effector
- Voltage-Controlled Filter (LPF/HPF/BPF/BEF)
- All-Pass Filter
- Delay Effector
- Modulated Delay
- Reverb Filter (KQ)
- Reverb Filter (FreeVerb)
- Compressor
- Chorus Effector
- Flanger
- Bit Crusher

Clock
- Loop Gate (Tempo Synchronization)
- 8 Step Sequencer
- 8 Step CV Sequencer
- 8 Step Gate Sequencer

Stereo/Mono Converter
- Mono To Dualmono
- Stereo To Mono
- Panner

Miscellaneous
- Custom Controller
- Const Value
- Oscilloscope

If you feel it sounds noisy, slow or stuttering, try to decrease polyphony, increase buffer size and reduce connected modules.

Introducing Audiobus support: Now you can stream live audio directly to other Audiobus-compatible apps! See http://audiob.us for more information.

Ableton Link is a new technology that synchronizes beat, phase and tempo of Ableton Live and Link-enabled iOS apps over a wireless network.

Machine translated text is included in this application and description.

Terms of Use: https://www.kiraqtech.jp/termsofuse/

## Key features

- Polyphonic modular synthesis
- Patchable module system
- Extensive module library
- MIDI and Audiobus support
- Ableton Link integration
- Audio Unit Extension (AUv3)

## Pricing and in-app purchases

Base price: $11.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Medium Tip | $4.99 | one-time |
| Huge Tip | $39.99 | one-time |
| Small Tip | $0.99 | one-time |
| Large Tip | $14.99 | one-time |


## Recent user reviews (10 of 33)

All indexed reviews: https://appshunter.io/ios/app/kq-minisynth-legacy/id1070850573/reviews.md

### 1/5 — Ben voyons !

*2026-03-05*

Plutôt que mettre à jour celui là on ressort une version 2026 très peu différente et on repasse à la caisse pour 10 euros pour ravoir le Synth qu’on avait déjà . Marre de ces pratiques commerciales vous ne respectez pas vos clients !

**Developer response:** Si votre ancien logiciel fonctionne correctement, il n'est pas nécessaire d'acheter la nouvelle version. L'achat de la version groupée vous permet de mettre à niveau à moindre coût. Nous avons créé une nouvelle application autonome afin de verrouiller les binaires de l'ancienne application, d'assurer la compatibilité avec les nouveaux systèmes d'exploitation et d'abandonner certaines des anciennes fonctionnalités. Cette décision a été difficile à prendre.

Traduit avec DeepL.com (version gratuite)

### 5/5 — I really love this app.

*2025-03-13*

I personally think that this a great app. But I would like for it to have a wavetable module too for digital waves.

### 5/5 — Great update to a gem of an app!

*2023-06-01*

Very welcome additions to this fun modular app. Keep up the good work.

### 5/5 — Great. Love the Layout Particularly.

*2021-03-11*

Love the modular layout of this synth. Great for helping with an understanding of how synths work. Great job!

### 5/5 — Excellent modular synth w/ excellent support

*2020-01-17*

This synth is very powerful and works without much fuss if you are use to routing. Dev was extremely responsive when I had an issue and released a fix for it quickly.

Synth takes low resources which is great. I wish I could midi map to all/more of the knobs in my patch but there is more than enough to get something good going.

### 5/5 — Awesome synth

*2019-10-01*

I LOVE this soft synth. So much fun to experiment with. There are very limited instructions so you are really forced to try new things and see what happens, which is cool. 

Very realistic and detailed. You can learn all about signal paths and how modules effect one another, without having to set up a whole eurorack. I love the sounds I can get out of my patches and have sampled them many times!

### 5/5 — The sheer ice bubbles of modular fm

*2019-09-08*

This is haunted modular synthesis. FM mayhem and mind slicing photon rays create ice beams. Quite well in fact japan has a day devoted to this developer and is also worshiped in some exotic sound labs.

### 5/5 — bug fixed

*2019-03-24*

plante direct à l'ouverture sur mon ipad air IOS 8.1.2
edit 24-03-19. Bug fixed by the dev.  thanks

**Developer response:** Thanks for reporting. The bug has been fixed on the current version.

### 5/5 — Excellent App

*2018-11-26*

I have to rate this app with 5 stars as it exceeds all expectations for such a low cost. It also beats a lot of the competition for the simple and easy to use UI. Very flexible and usable. A great way to learn modular synthesis.

Somewhat suprised that no one else has left any feedback considering how long it has been in the app store and the fact that the developer has frequently updated it.

### 5/5 — Trop cool

*2018-08-20*

Rien a dire un petit bijoux

## Frequently asked questions about KQ MiniSynth Legacy

### What is KQ MiniSynth Legacy?

KQ MiniSynth Legacy is a polyphonic modular synthesizer application that allows users to create sounds by patching together various audio modules. It is a deprecated product, and users are advised to get KQ MiniSynth 26 instead.

### How many modules can be used in KQ MiniSynth Legacy?

Users can add and remove up to 100 modules, including oscillators, envelope generators, and filters, depending on the device's capabilities. The app includes a wide variety of modules for diverse sound sculpting.

### Is KQ MiniSynth Legacy suitable for learning?

Yes, the modular system is designed for educational use, allowing users to learn the function of different modules while patching them together. The patch-editing view supports zooming for easier manipulation.

### What audio and MIDI features does KQ MiniSynth Legacy offer?

It supports external and virtual MIDI, MIDI over Bluetooth LE, Inter-App Audio, Audiobus, and Ableton Link integration. It also includes an Audio Unit Extension (AUv3 Instrument).

### What should I do if the output sounds too quiet in KQ MiniSynth Legacy?

If the output is too quiet, check the Expression value (Ctrl #11) and try tapping 'RESET' on the I/O Panel. If the issue persists, consider changing the 'Boost Velocities' option in the settings.

### How can I enable note velocity in the Audio Unit of KQ MiniSynth Legacy?

To enable the note velocity function in the Audio Unit, turn off the 'Ignore Velocities' setting. The default setting is enabled because GarageBand may send velocities randomly.

### What is the price of KQ MiniSynth Legacy?

KQ MiniSynth Legacy is priced at $9.99. Users who purchased the app recently can request a refund.

### What are the performance considerations for KQ MiniSynth Legacy?

If you experience noisy, slow, or stuttering audio, try decreasing the polyphony, increasing the buffer size, and reducing the number of connected modules. These adjustments can help optimize performance on your device.

## Version history (last 5 releases)

### 3.1.8 — 2025-10-02

This product became deprecated and has been renamed.

### 3.1.7 — 2024-06-22

Updated the sound designer's link.

### 3.1.6 — 2023-12-01

Changed linker options. (Linker is a development tool.)
It prevents from potential crashes.

### 3.1.5 — 2023-11-27

Improved appearance.

### 3.1.4 — 2023-09-01

Fixed failing validation on Mac.

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## More apps by Ryouta Kira

- [KQ Dixie Legacy](https://appshunter.io/ios/app/kq-dixie-legacy/id1330269027)
- [MIDI Recorder with E.Piano](https://appshunter.io/ios/app/midi-recorder-with-epiano/id1448577506)
- [KQ Unotone Legacy](https://appshunter.io/ios/app/kq-unotone-legacy/id1478535391)
- [Piano Modoki](https://appshunter.io/ios/app/piano-modoki/id1509387368)
- [KQ Sampei Legacy](https://appshunter.io/ios/app/kq-sampei-legacy/id1626784865)

All apps by Ryouta Kira: https://appshunter.io/developer/862984358

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*