# KQ MIDI Modulate

> Advanced MIDI signal processing and routing tool with AUv3 plugins. (iPhone/iPad app by Ryouta Kira.)

- Source: https://appshunter.io/ios/app/kq-midi-modulate/id6479354516 (this page in markdown: same URL + `.md`)
- Developer: [Ryouta Kira](https://appshunter.io/developer/862984358)
- Category: Utilities, Music
- Price: $5.99
- Rating: 5.00/5 from 4 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 2 MB
- Languages: American English
- Released: 2024-03-19
- Data updated: 2026-09-05
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/kq-midi-modulate/id6479354516/reviews.md

## What is KQ MIDI Modulate?

This is a tool for MIDI experts. Not recommended for beginners.
- This app by itself does not produce sound.
- It converts input MIDI signals and outputs them.
- You can use 8x16 pads to output any MIDI signal.
- You can route MIDI devices freely.
- This app includes 2 AUv3 Plugins.
- Compatible only with MIDI 1.0; MIDI 2.0 is not supported.
- The developer uses this app conveniently with a MIDI wind controller.

Convert
Converts the values of control signals. Cannot be set per channel.

Note Ctrl, Threshold: Transmit note on messages only if the value of the Note Ctrl is above the threshold.

Key: Key of the note signal
Vel1: Velocity of Note On
Vel0: Velocity of Note Off
CC: Control Change
AT: Channel Aftertouch
PB: Pitch Bend
PC: Program Change
N/A: Not applicable

HR: High Resolution - when enabled, handles 14-bit signals.
E: Envelope, tap to open the settings window.
F: Filter, tap to open the settings window.
LPF: Low-pass filter, smoothes out value changes. The higher the Strength value, the slower the change.
HPF: High-pass filter, applies only abrupt value changes. The value automatically approaches the Return Base value. The higher the Strength value, the faster the change.

Tap the graph to switch between line graph, history, and bar graph.
Long press the graph and tap “Edit Curve” to edit the curve.
"- 0 +" denotes the offset; this value is added to the input value.
Press the button in the top left corner to switch to a minimized view.
The "!" in the top right corner is the panic button. Pressing it sends All Notes Off and All Sound Off messages.

Trigger
Sends signals according to the rules upon receiving specified MIDI signals. You can specify channels.

Harmony: Shifted note signals
Channel Rewrite: Rewrite of channels
Signal Trigger: Trigger of any MIDI signal
Value Offset: Increment/decrement of value
Filter: Suppression of transmission

Pad
Consists of 8x16 pads.
Note: Note signal
CC/AT/PB Oneshot: Control signal (when pressed)
CC/AT/PB On/Off: Control signal (press/release)
Program: Patch Change (bank selectable)
Convert Offset: Offset specification for the Convert screen
Load Preset: File loading on the Profiles screen
Misc/SysEx: Any signal

Latch: Pads become toggles. If a group is specified, the pads act as radio buttons.

Options
Key Delay: Delays Note On
Velocity Convert: When outputting Vel1 in Convert, select whether to always convert or only when legato is not present
MIDI Rx Channel: Receiving channel
MIDI Tx Channel: Transmitting channel
Filter Other Channel: Suppress transmission of channels other than receiving channel
Duplicated Notes: Specifies handling of duplicated notes

Note that:
The application and description contain machine-translated text.

## Key features

- MIDI signal conversion
- 8x16 pad output
- Free MIDI device routing
- AUv3 plugins included
- Note and control signal triggering
- Customizable signal filtering

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/kq-midi-modulate/id6479354516/reviews.md

### 4/5 — outil midi très bien pensé

*2024-06-16*

merci pour toutes vos applications. Les interfaces méritent un peu de design mais l’ergonomie et les fonctions sont au rendez-vous pour tout musicien passionné et pro.

### 5/5 — Extremely powerful

*2024-06-15*

This is a very powerful MIDI control app. I have a number of MIDI utility apps and it can do things the others cannot with ease and even includes graphical feedback in realtime. The support and engagement from the developer is top notch. It does require a decent understanding of MIDI features and parameters for setting thresholds, triggers, and modifying note values, cc values and so forth. 

Its been really interesting to use, and the manual and help information is quite extensive. Highly recommended.

### 3/5 — Accidentally bought it -- how to use?

*2024-05-08*

I don't know how to use this app. Please help with documentation or video tutorial.

## Frequently asked questions about KQ MIDI Modulate

### Does KQ MIDI Modulate produce sound on its own?

No, KQ MIDI Modulate does not produce sound by itself. It is a tool for processing and routing MIDI signals, which then need to be sent to a sound-generating device or software.

### What kind of MIDI signals does KQ MIDI Modulate support?

KQ MIDI Modulate is compatible only with MIDI 1.0. It does not support MIDI 2.0. It can handle various MIDI messages including notes, control changes, aftertouch, and pitch bend.

### Can KQ MIDI Modulate be used with other music software?

Yes, the app includes 2 AUv3 Plugins, allowing it to be integrated with compatible audio applications on iOS devices for advanced MIDI manipulation within your music production workflow.

### What is the 'panic button' in KQ MIDI Modulate?

The 'panic button' in KQ MIDI Modulate sends 'All Notes Off' and 'All Sound Off' messages. This is a crucial feature for quickly silencing any unexpected or runaway MIDI notes.

### How does KQ MIDI Modulate handle signal filtering?

KQ MIDI Modulate offers both low-pass and high-pass filtering options. The low-pass filter smooths value changes, while the high-pass filter applies only to abrupt changes, allowing for fine-tuning of MIDI signal dynamics.

### Is KQ MIDI Modulate suitable for beginners?

No, the app explicitly states it is not recommended for beginners. It is designed for MIDI experts who require advanced control and understanding of MIDI signal routing and manipulation.

### What devices is KQ MIDI Modulate compatible with?

KQ MIDI Modulate is compatible with iPhone, iPad, and iPod devices. It is available for purchase on the App Store for these platforms.

### How often is KQ MIDI Modulate updated?

The latest version of KQ MIDI Modulate is 1.7.1, last updated on March 22, 2026. This indicates a recent update, suggesting ongoing developer support and potential for future improvements.

## Version history (last 5 releases)

### 1.7.1 — 2026-03-22

The preferred UI size for the plugins has been set.

### 1.7 — 2026-02-19

Changed behavior of the Key Delay function.
Fixed some screen glitches.

### 1.0.8 — 2025-10-22

I've adjusted the appearance when text size is changed in iPhone/iPad settings.

### 1.6.7 — 2025-10-14

Improved MIDI CC trimming process.
Updated Software Developer Kit.
Changed internal UI processes.

### 1.6.6 — 2025-07-02

Fixed an issue that unexpectedly enabled "Resume Pad Status".

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## More apps by Ryouta Kira

- [KQ MiniSynth Legacy](https://appshunter.io/ios/app/kq-minisynth-legacy/id1070850573)
- [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 2026-09-05.*