ChordMapMidi vs Xequence AU | Keys
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChordMapMidi
This app is a MIDI controller for exploring musical chords and progressions in major and minor keys. It sends note information to other synthesizer apps on your device, making it a portable tool for musicians and educators.
- Explore chords and progressions
- Major and minor keys
- MIDI controller functionality
- Sends note information to synth apps
- Portable music tool
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ChordMapMidi allows you to explore chords and chord progressions in both major and minor keys, one finger tap at a time. Note: ChordMapMidi is a MIDI controller. It doesn't create sound on its own. It sends note information to synthesizer apps you have on your device. ChordMapMidi is useful for songwriters, MIDI musicians, music educators... especially in places where the only instrument you have is the phone in your pocket. Have fun exploring chords and progressions!
Xequence AU | Keys
This app functions as a versatile MIDI keyboard controller within AUv3 hosts, offering expressive playing modes and customizable controllers. It's designed for music production enthusiasts to enhance their workflow with a responsive and resource-efficient interface.
- 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
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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!
Screenshots
Verdict
ChordMapMidi and Xequence AU | Keys both sit at 5.0 stars, but that hides the real split: 83% of Xequence AU | Keys's written reviews are positive against 53% of ChordMapMidi's. Xequence AU | Keys also leads on device support (3 vs 1) and ratings volume (19 vs 5). On rating, update cadence, ads and in-app purchases 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
ChordMapMidi costs $3.99 and Xequence AU | Keys $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for ChordMapMidi against 4.9 for Xequence AU | Keys. Both are backed by a comparable volume of ratings — 5 and 19 respectively. Written reviews are what separate them: 53% of ChordMapMidi's written reviews are positive against 83% of Xequence AU | Keys's.
Both ship on a similar rhythm, roughly every 8 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | ChordMapMidi | Xequence AU | Keys |
|---|---|---|
| Price | $3.99 | $2.99 — better |
| Rating | 5.0 (5 ratings) — better | 4.9 (19 ratings) |
| Positive reviews | 52.9% of reviews | 83.3% of reviews — better |
| Number of ratings | 5 | 19 — better |
| Update frequency | Every 8 months | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 14.2 — better |
| Further details — not scored | ||
| Size | 4 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Malcolm Mugglin | Alexander Ewering |
Customer experience
ChordMapMidi
Xequence AU | Keys
In-app purchases
ChordMapMidi
No in-app purchases
Xequence AU | Keys
No in-app purchases
Questions
Is ChordMapMidi free?
Is Xequence AU | Keys free?
Which has better reviews, ChordMapMidi or Xequence AU | Keys?
Do ChordMapMidi or Xequence AU | Keys have ads?
Which is updated more often, ChordMapMidi or Xequence AU | Keys?
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