# K-AIR MIDI

> MIDI controller app for BOSS Katana Air amp and MIDI pedals. (iPhone/iPad app by Stephane Villeneuve.)

- Source: https://appshunter.io/ios/app/k-air-midi/id6449266659 (this page in markdown: same URL + `.md`)
- Developer: [Stephane Villeneuve](https://appshunter.io/developer/1687514617)
- Category: Music
- Price: $9.99
- Rating: 5.00/5 from 1 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 6 MB
- Languages: American English
- Released: 2023-08-11
- Data updated: 2026-07-17
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/k-air-midi/id6449266659/reviews.md

## What is K?

K-AIR MIDI is a midi enabled app which sends and receives MIDI messages and is designed to be a companion app for the BOSS Katana Air amp (original and EX) as well as midi capable foot pedals and controllers.  Via the use of midi messages, the app can select/retrieve presets, adjust and toggle effects, and adjust some of the effects settings.  The app provides a full touch interface as well as mapping of midi CC codes to most controls for midi controller or foot pedal use.

Specific features include:

- Preset selection which retrieves the preset and displays the preset's effects state and levels
- Gauges for Boost, Mod, Fx, Delay 1, Delay 2, Reverb, and Ambience with level change (slider under the gauge) or on/off toggle (tapping the gauge)
- Each effect displays the active effect colour and name, and tapping this will cycle through the three effects (green, red, yellow)
- The effect assignment to each colour block can be swapped from the list of effects via the swap icon to the left of the effect colour block
- Some effects settings are exposed and can be edited via the levels icon to the right of the effect colour block
- Tap tempo can be set with a slider or tap for both delay 1 and delay 2, showing both BPM and millisecond intervals.  The tap tempo also has a copy and half value copy feature between the two tap tempos
- Faders for Gain and Volume control
- Noise Gate setting
- Preset EQ, Bass, Mid, Treble, and Global EQ settings
- Selector switches for Amp Selector and Cabinet
- Battery level indicator
- Tuner
- Decoupling of Fx/Delay and Mod/Boost so that all effects can be used simultaneously
- Allows preset settings to be saved (including name updates) as well as exported and imported
- Assignable Midi CC codes for most controls via a Midi learn mode feature (when activated, the app listens for incoming CC code and shows that code in the learned code box, simply tap the gauge or slider you wish to assign that code to).
- Midi CC mapped controls can be used to select presets, toggle effects on/off, cycle through the effect block/colour, open effects settings, move faders (with an expression pedal or volume knob) and the same CC code can be assigned to more than one control when appropriate (i.e. one button to toggle the Fx and Boost at the same time)
- Assigned CC codes are preserved as user settings and recalled when restarting the app and can also be exported to file and imported from file
- Supports landscape,  portrait, as well as split view
- The screen is zoomable with pinch gesture.  This is useful for Split View and resizing the Split View of this app to fit the screen
- A bluetooth device discovery page is available from within the app (to view/select the connection state of the amp and any midi bluetooth pedals detected)

This app is not meant or intended to replace the official BOSS BTS app, it simply exposes some of the most common settings that would be adjusted while playing.

Note that the BTS app does not need to be running to use this app (in fact it is best if it isn't to avoid conflicting messaging).  

IMPORTANT: This app works with the BOSS Katana Air firmware version 2.0 (original and EX) amp with no guarantee of compatibility with future firmware releases.

DISCLAIMER:  By using K-AIR MIDI (the "Software"), you acknowledge and agree that the Software is provided on an "as is" basis, without any warranties or guarantees of any kind, whether expressed or implied. You assume all responsibility and risk for the use of this Software. You agree that you shall not hold the developer liable for any damages, losses, or liabilities, including but not limited to direct, indirect, incidental, special, consequential, or punitive damages, arising out of or in connection with the use of the Software.

NOTE: This app is not affiliated with or endorsed by Roland Corporation in any way.  BOSS is a registered trademark of Roland Corporation.

## Key features

- Preset selection and retrieval
- Adjustable effect levels and toggles
- Tap tempo for delays
- Gain, Volume, and EQ controls
- Assignable MIDI CC mapping
- Save, export, and import presets
- Bluetooth device discovery

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/k-air-midi/id6449266659/reviews.md

### 5/5 — Such a huge help for me!

*2024-02-20*

I am a blind guitarist and this app actually works with voiceover as the official bots for waza and Katana Air apps do not.  I can now create my presets and this app is accessible for use with voiceover which is huge for the visually impaired.  I am now trying to figure out how to configure and use the EV1 WL with the Katana Air EX and Waza Air.  The official apps ar not compatible.. Any advise or suggestions would be greatly appreciated.  And is there a way to contact this apps creator?  I’d love to get it all set up and running.I know there are many visually impaired musicians out there who are running into roadblocks and just settling for not being able to access all the tones they could be using to create.  Thank you for the apps you have created man.

### 5/5 — K-Air MIDI for the Katana Air

*2023-08-16*

Similar to the W-Air app,  this is perfect for integrating your Katana Air with stuff like a Helix or HXSTOMP, expands your DSP and lets you run all the various FX however you want.  

You’ll definitely want this around for travel and dialing in tones much faster.  Makes the entire Katana Air experience hugely better.

## Frequently asked questions about K

### What is K-AIR MIDI?

K-AIR MIDI is a MIDI-enabled application designed to work with the BOSS Katana Air amp and other MIDI-capable foot pedals and controllers. It allows users to select presets, adjust effects, and map MIDI CC codes for enhanced control.

### Does K-AIR MIDI replace the official BOSS BTS app?

No, K-AIR MIDI is not intended to replace the official BOSS BTS app. It focuses on exposing and controlling some of the most frequently adjusted settings during live play.

### What devices does K-AIR MIDI support?

K-AIR MIDI is available for iPhone, iPad, and iPod. It supports landscape, portrait, and split view modes, and the screen is zoomable with a pinch gesture.

### How much does K-AIR MIDI cost?

K-AIR MIDI is a paid application, priced at $9.99. There are no in-app purchases or subscriptions required after the initial purchase.

### Can I save and load my K-AIR MIDI settings?

Yes, K-AIR MIDI allows you to save your preset settings, including custom names. You can also export and import these presets to share or back them up.

### Does K-AIR MIDI have ads?

No, K-AIR MIDI does not contain advertisements. As a paid application, it offers an ad-free experience for all users.

### How often is K-AIR MIDI updated?

The latest version of K-AIR MIDI is 2.30, last updated on May 11, 2026. While specific update frequency isn't detailed, the release date of the latest version indicates ongoing development.

### What is the user rating for K-AIR MIDI?

K-AIR MIDI has received a perfect rating of 5.0 stars from one review. This suggests a highly positive user experience among its current users.

## Version history (last 5 releases)

### 2.30 — 2026-05-11

- Update of MIDI library to most recent version for additional stability and performance improvements

UI Improvements:
- Auto screen scaling on the iPad (removed manual zoom) with auto scaling of popup sheets
- Replaced menu at top on iPad with menu button on top right
- Enhanced popup sheet displays and colour scheme on both iPad and iPhone
- Improved on/off tap on gauges to be more responsive on both iPad and iPhone
- Addition of button to come out of midi learn on iPad 
- Other minor UI tweaks

### 2.20 — 2026-03-13

- Update related to newer iOS

- Improved bluetooth connectivity stability.

- Addition of preset names on preset buttons (making it more obvious which one is being selected).  Note that this is not available on the iPhone version (screen is too small to add all preset names). 

- Enhancements with preset switching (no longer shows the red message "while" it's retrieving - if the preset is not retrieved within 3 seconds, then the usual red message will be displayed)

### 2.11 — 2025-01-25

Bug Fix: Export, Save, Import, Tuner, Battery Level, and Help popups were showing off screen due to iOS updates

### 2.1 — 2024-06-13

- Additional scrollable view of connected MIDI devices on the main screen.  This list is read only and for enhanced visibility of connected devices, the Bluetooth menu is still used for managing connections.

### 2.0 — 2024-02-14

- Ability to manually set the "Learned CC Code" value in Midi Learn (the CC value to be mapped to controls) by adding scroll selection of values 0 to 127 to the field,  Simply swipe up and down for rapid scrolling through the values or tap & hold and slide up/down for smaller movement.  This should improve the ability to configure CC Mappings more rapidly.  The field will continue to receive inbound CC codes from connected MIDI controllers, the manual scroll is in addition to the current "listening" mode.

- Addition of signal chain selection option

- Minor bug fixes

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## More apps by Stephane Villeneuve

- [W-AIR MIDI](https://appshunter.io/ios/app/w-air-midi/id6449039840)
- [Loop Manager](https://appshunter.io/ios/app/loop-manager/id6478815543)
- [MIDI Patch](https://appshunter.io/ios/app/midi-patch/id6499078241)

All apps by Stephane Villeneuve: https://appshunter.io/developer/1687514617

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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 2026-07-17.*