# Xequence AU \| Keys — AUv3 MIDI Keyboard Controller

> AUv3 MIDI keyboard controller for music production with expressive features. (iPhone/iPad app by Alexander Ewering.)

- Source: https://appshunter.io/ios/app/xequence-au-keys/id1453028249 (this page in markdown: same URL + `.md`)
- Developer: [Alexander Ewering](https://appshunter.io/developer/1743777532)
- Category: Music, Entertainment
- Price: $2.99
- Rating: 4.90/5 from 18 App Store ratings · 5 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.2 · 3 MB
- Languages: American English
- Released: 2019-02-23
- Data updated: 2026-08-28
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/xequence-au-keys/id1453028249/reviews.md

## What is Xequence AU | Keys?

IMPORTANT: This app is targeted at music production enthusiasts and requires an AUv3 Audio Unit Host to run! It does not do ANYTHING on its own!

Xequence AU | Keys is a comprehensive and expressive keyboard controller for use inside AU (Audio Unit) hosts like AUM, Cubasis, apeMatrix, etc.

It features the same, widely acclaimed keyboard that users of Xequence, our advanced MIDI workstation, have grown to love.

HIGHLIGHTS:

- Fully scale-aware, very playable single or dual keyboard
- Extremely fast and light on resources
- Over 70 scales in 10 categories included
- Freely adjustable key width
- "Glide" mode for triggering keys by sliding between them
- Velocity emulation (via vertical position on key)
- Automatically adapts to nearly any plugin window size or aspect ratio
- Unlimited instances
- Full support for AU presets (and state saving / restoration) in the host
- Configurable keyboard color and MIDI channel

CONTROLLERS:

- Any number of MIDI CCs (controllers) can be freely configured and shown as touch ribbons next to the keyboard
- A number of standard controller numbers (such as 74 = Cutoff, 7 = Volume etc.) are included and can be set with a single tap

SPECIAL CONTROLLER MODES:

The following special modes can be set per controller and give an "MPE-like" feel while being compatible with non-MPE synths:

- DEVICE ROTATION - controller moves according to device rotation
- GATE - controller can be set to a default position, and then tapped anywhere to toggle it to that position and back (think "Trance gates" when used with eg. CC 7 / Volume)
- KEY POSITION - controller moves when touching a keyboard key, depending on vertical position
- KEY SLIDE - controller moves along when one or more fingers are moved vertically while holding any number of keys
- The above modes can also be combined
- Note that this is NOT MPE - controllers are always sent for all notes at once, not per individual note!

Please report any issues via our website, we provide quick and comprehensive support!

## Key features

- Scale-aware single or dual keyboard
- Adjustable key width and glide mode
- Velocity emulation
- Configurable MIDI CC touch ribbons
- Special controller modes (MPE-like)
- AU presets and state saving

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/xequence-au-keys/id1453028249/reviews.md

### 5/5 — Has a few bugs but it’s pretty good anyway

*2020-04-27*

I’ve already committed to the developer to inform them of the bugs I’ve found so they can fix it (I will do so soon Dev), but in general these are well worth apps. 

My only request:

Please make them MPE compatible - naturally not by default but being able to send midi through multiple channels (channel per note) would be great for stuff like NOISE, Synthclavier, Volt and all those fancy MPE synths.

### 1/5 — Major Glitch

*2020-04-21*

Unable to launch app, screen freezes telling me that installation is complete and ready to use. Tried rebooting and reinstalling application.

### 5/5 — This app is crazy good!

*2019-02-28*

Make sure you’re interested in AUv3 before you buy. Grab this up as soon as possible!

### 5/5 — GREAT iOS Midi Keyboard Controller!

*2019-02-26*

Let’s face it, most iOS DAW built-in keyboards are mediocre at best. This is a TERRIFIC replacement. As long as the host supports AUv3 midi apps, you can load up this baby and have a great keyboard, scales, and as many parameter (midi cc) controllers as you want at your fingertips. It is one of the most perfect single-purpose apps I own. I’m delighted! No Kids! It doesn’t make sound. Don’t buy it unless you understand what it’s for. But if you do, get this right away. You won’t regret it.

### 5/5 — Another Excellent one from this Dev

*2019-02-25*

Just what was needed, a good basic AU controller, and 2 kinds at a good price. These guys focus on midi and do it well. I wish someone would organize developers to all do midi in a similar way so apps would work well together in the same way to not need workarounds. These guys do it quite well.

## Frequently asked questions about Xequence AU | Keys

### What is Xequence AU | Keys?

Xequence AU | Keys is a MIDI keyboard controller designed to work within AUv3 audio unit hosts. It provides an expressive interface for playing virtual instruments and doesn't function as a standalone application.

### What are the system requirements for Xequence AU | Keys?

This app requires an AUv3 audio unit host to run, such as AUM, Cubasis, or apeMatrix. It is compatible with iPhone, iPad, and iPod devices and is rated for ages 4 and up.

### How does Xequence AU | Keys handle scales?

Xequence AU | Keys is fully scale-aware and includes over 70 scales across 10 categories. This feature helps users stay in key and explore different musical modes easily.

### What is the price of Xequence AU | Keys?

Xequence AU | Keys is a paid application, available for $2.99. There are no in-app purchases or subscriptions associated with this app.

### Does Xequence AU | Keys have ads?

No, Xequence AU | Keys does not contain advertisements. As a paid application, it offers an ad-free experience for its users.

### How often is Xequence AU | Keys updated?

The app was last updated on January 9, 2024, with version 1.2.1. This indicates a history of updates and ongoing support from the developer.

### What makes Xequence AU | Keys' controllers unique?

It offers freely configurable MIDI CC touch ribbons and special controller modes like 'Glide', 'Device Rotation', 'Gate', 'Key Position', and 'Key Slide', providing an MPE-like feel for non-MPE synths.

### What is the user sentiment for Xequence AU | Keys?

Users have rated Xequence AU | Keys very highly, with an average of 5.0 stars from 16 ratings, indicating strong satisfaction with its performance and features.

## Version history (last 5 releases)

### 1.2.1 — 2024-01-09

FIXES:

- Fix erratic behaviour of 'Pitch' controller in Key Slide / Position control mode.

### 1.2.0 — 2024-01-01

NEW:

- Added a "Hold" mode that will toggle keys when pressed, and an advanced "Hold+" mode that intelligently holds individual keys or chords until the "next" key or set of keys is pressed. Try it, it's amazing!

IMPROVEMENTS:

- Improved behaviour when playing the same pitches on both manuals.

FIXES:

- Fix key retriggering (with a second finger) in keyboard sometimes not working.

### 1.1.1 — 2023-04-03

NEW:

- Vertical position velocity can now be switched to "Max at top".

FIXES:

- When launching a new instance, middle-C will now again be in the center instead of C0.
- When toggling to dual manuals, the previous scroll position on the new manual will now be restored.

### 1.1.0 — 2022-08-15

NEW:

- New toolbar slider to adjust the velocity used when vertical velocity is disabled.
- Full mouse support.

IMPROVEMENTS:

- Touch handling has been completely re-engineered, fixing a number of occasional issues with stuck keys, wrong velocities, or otherwise wonky behaviour.
- The toolbar and scales menu are now fully usable even while playing the keyboard.
- Controller sliders can now be re-arranged in settings.
- The Pitch controller now uses the full 14 bit resolution.
- Various interface tweaks.

### 1.0.2 — 2020-09-30

IMPROVEMENTS:

- The keyboard(s) now remember their scroll positions between sessions.

## Apps similar to Xequence AU | Keys

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## More apps by Alexander Ewering

- [Eleven \| Calculator](https://appshunter.io/ios/app/eleven-calculator/id890014369)
- [MusicFolder 2](https://appshunter.io/ios/app/musicfolder-2/id1366466861)
- [encircled.](https://appshunter.io/ios/app/encircled/id1387312877)
- [Xequence AU \| Pads](https://appshunter.io/ios/app/xequence-au-pads/id1453556216)
- [Xequence 2](https://appshunter.io/ios/app/xequence-2/id1464669442)

All apps by Alexander Ewering: https://appshunter.io/developer/1743777532

## Related topics

[ewers](https://appshunter.io/ios/topics/ewers)

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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 2026-08-28.*