# Chordion : Musical Instrument & MIDI Controller

> iPad music creation app for playing chords and melodies with one hand. (iPhone/iPad app by Olympia Noise Co..)

- Source: https://appshunter.io/ios/app/chordion-musical-instrument-and-midi-controller/id552182095 (this page in markdown: same URL + `.md`)
- Developer: [Olympia Noise Co.](https://appshunter.io/developer/500740314)
- Category: Music, Education
- Price: $2.99
- Rating: 4.60/5 from 45 App Store ratings · 232 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 19 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, European Portuguese, Chinese (Simplified, China), European Spanish
- Released: 2012-08-21
- Data updated: 2026-06-08
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/chordion-musical-instrument-and-midi-controller/id552182095/reviews.md

## What is Chordion?

*** App Store Editor's Choice in 23 countries! *** 

Chordion is a fun new way to make music on the iPad.  Choose chords with one hand and play melodies with the other - never hit a wrong note! Chordion is great for performing, writing songs, jamming, or having sing-alongs with friends. 

*** App Store Best of 2013 "Innovative Music Apps" in China, Japan, and South Korea *** 

Chordion makes it easy to play common chord changes in any key. In "auto" mode, Chordion's keyboard follows the chords you play, letting you strum up and down or effortlessly pluck out melodies.  The built-in drum machine & arpeggiator help you keep the beat.

More experienced users will love the wide range of customization options - from the layout of chords to synthesis parameters to exotic scales.  Chordion's built-in synthesis engine is highly tweekable and easy to use - create echoing lead lines, shimmery chimes, and dreamy drones.  Chordion also supports MIDI, allowing you to control other instruments using Chordion's unique interface. 

We appreciate your support!  

Follow us on Twitter @OlympiaNoiseCo 
Like us on Facebook : facebook.com/OlympiaNoiseCo 
Visit our YouTube Channel : http://www.youtube.com/user/OlympiaNoiseCo

## Key features

- One-handed chord and melody playing
- Auto mode for chord following
- Built-in drum machine
- Arpeggiator
- Customizable layout and synthesis
- MIDI controller support

## What do users think of Chordion?

Overall sentiment: positive

**Pros**

- 🎨 Elegant and intuitive interface
- 🎹 Powerful chord and scale capabilities
- 🎶 Inspiring and creative music-making
- 🎛️ Versatile MIDI controller functionality
- 💰 Great value for the price

**Cons**

- 🐛 Stability issues and crashes
- 🔇 Limited sound engine and drum samples
- 🔀 Confusing preset management
- 🔍 Unclear documentation and onboarding
- 🔌 Lack of MIDI clock sync and recording

**Commonly reported bugs**

- Crashes on iOS 14 and later
- MIDI connectivity issues with external apps
- Drum machine and arpeggiator not working in MIDI mode

**Most requested features**

- Expanded sound library and synth engine
- Improved preset management and organization
- MIDI clock sync and recording capabilities
- Customizable chord and scale layouts
- Audiobus and Inter-App Audio integration

## Recent user reviews (10 of 232)

All indexed reviews: https://appshunter.io/ios/app/chordion-musical-instrument-and-midi-controller/id552182095/reviews.md

### 3/5 — Amazing but abandoned

*2026-01-04, version 1.51*

Please Dev don't abandon Chordion.
Give it a proper update please. It's an amazing app and i'd be happy to pay for a v2.

### 3/5 — Classic..  love to see this go  Auv3

*2025-04-26, version 1.51*

I purchased Chordian when was first released and always enjoyed it, very smooth and great design 
I’d really like to see it rise up and go Auv3

### 1/5 — Be honested with the consumer!

*2024-05-31, version 1.51*

I bought app 2 and instead of updating, you simply removed it from the store and launched app 3. I won't buy anything from this company anymore. Please be honest with the consumer!

### 5/5 — 2024 - still exactly what I need

*2024-02-06, version 1.51*

This app is brilliant. After the disappointing cost announcement of the OM-108, I thought I’d look at alternatives. Not only is this a great sounding instrument with tonnes of options, presets, and customisation, but it’s a superb MIDI controller. Get yourself a cheap lightning to female USB-A adapter, and I can connect my iPad to my Model D synth and play all the beautiful scales with ease, just using a printer cable (USB-A to USB-B). Not only that, a MIDI cable coming out of the MIDI THRU port on the Model D, into the MIDI IN of my 20 year old microKorg, and it can control that too. MIDI has been around for such a long time, so great to see it still being used here. You can also split the MIDI signal from this app to do 2 different channels, one for the chords, and one for the arp/touchpad. Best £3 I’ve spent in a long time.

### 5/5 — Inspiring MIDI Controller

*2023-07-13, version 1.51*

I continue to come back to this app to use as a MIDI controller and source of inspiration. When I have a question, the developer responds quickly to questions which is appreciated. I’m also happy to support an indie developer.

### 5/5 — Simple and Clean

*2023-04-09, version 1.51*

I was looking forward to the Suzuki company’s re-release of the popular Omnichord instrument coming later this year. I fell in love with the sound of the instrument as it was the first I had ever listened to when trying headphones for the first time as a kid. They became impossible to get a hold of easily since their explosion in popularity. With this elegant and beautiful app, there’s no need for it anymore. I’m very impressed!

### 4/5 — Un must have

*2023-04-05, version 1.51*

Pourtant une petite mise à jour serait la bienvenue ne serait ce que pour avoir le nom du preset en cours à minima. 
Couplé avec D1 , il a remplace mon synthe sur scène.

### 3/5 — iPad only

*2023-02-27, version 1.51*

nice app, but why is it iPad only? I have music apps with MUCH denser UIs than this which work fine on iPhone.

### 5/5 — Great midi control app to make iPad music easy

*2023-01-04, version 1.51*

My favourite app for composing melody and chord lines on the fly…midi control to Cubasis etc is simple with background audio turned on in the DAW app

### 5/5 — Muy util

*2022-10-28, version 1.51*

Si conoces omnichord vas a apreciar mucho esta app con un bonito sonido y también para usar como teclado midi.
Solo queda para ser perfecta, una actualización con control midi desde AUM…

## Frequently asked questions about Chordion

### What is Chordion?

Chordion is a music creation app for iPad that allows users to play chords with one hand and melodies with the other, making it easy to create music without hitting wrong notes. It's designed for performing, songwriting, jamming, and sing-alongs.

### What are the key features of Chordion?

Key features include one-handed chord and melody playing, an 'auto' mode that follows played chords, a built-in drum machine and arpeggiator, extensive customization options for chord layouts and synthesis parameters, and MIDI support for controlling other instruments.

### How much does Chordion cost?

Based on the provided information, the app is a paid application. There are no mentions of in-app purchases or advertisements, suggesting a one-time purchase model.

### What devices is Chordion compatible with?

The application is specifically designed for the iPad, as indicated by its description and its recognition as an App Store Editor's Choice in multiple countries for iPad music apps.

### Who would benefit from using Chordion?

Chordion is ideal for musicians of all levels, from beginners who want an easy way to play songs to experienced users who can leverage its advanced customization and MIDI capabilities. It's great for performing live, composing new music, or simply jamming.

## Version history (last 5 releases)

### 1.51 — 2017-03-17

This app has been updated by Apple to display the Apple Watch app icon.

• Fixes a bug that caused a popping sound for some users.

### 1.50 — 2017-03-14

• 64-bit app.
• Fix bug that could cause MIDI mod wheel issues. 
• Audiobus 3 Ready
• Removed Noise:Cloud as the service that hosted it is no longer active. 
• This version is for iOS 9 and above.  iOS 6 - 8 users can still use the previous build.

### 1.41 — 2015-04-19

• Fixed bug which caused iOS 5 & 6 crashes
• Updated Audiobus SDK to fix issues with iOS 8.3
• Fixed a rare bug that caused strange "ghost" screen
• Manual is now opened in Safari for easier reading.

Chordion 2.0 is in the works! 
Keep in touch : www.olympianoiseco.com

### 1.40 — 2014-09-22

This update is for users running iOS7 or 8.  If you are running iOS 6 or earlier please do not update at this time!

Updated for iOS8

Updates to Audiobus and Inter-app Audio

Minor Bug Fixes

### 1.32.2 — 2014-06-03

• fixed issue with MIDI Network on some machines
• improved naming of MIDI Ports.

## Apps similar to Chordion

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Fugue Machine : MIDI Sequencer](https://appshunter.io/ios/app/fugue-machine-midi-sequencer/id1014191410) | 4.9 (611) | $9.99 | Music |
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| [BLEASS Arpeggiator](https://appshunter.io/ios/app/bleass-arpeggiator/id6464041408) | 4.8 (52) | $14.99 | Music |
| [Egoist](https://appshunter.io/ios/app/egoist/id859084874) | 4.5 (59) | Free | Music |
| [Sparkle - Cross-Synthesis](https://appshunter.io/ios/app/sparkle-cross-synthesis/id818477094) | 5.0 (48) | $8.99 | Music |
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## More apps by Olympia Noise Co.

- [dot Melody](https://appshunter.io/ios/app/dot-melody/id841019483)
- [Ribbons : Touch Instrument](https://appshunter.io/ios/app/ribbons-touch-instrument/id898059305)
- [Patterning 2 : Drum Machine](https://appshunter.io/ios/app/patterning-2-drum-machine/id1332154350)
- [Patterning for iPhone](https://appshunter.io/ios/app/patterning-for-iphone/id1491394394)

All apps by Olympia Noise Co.: https://appshunter.io/developer/500740314

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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 2026-06-08.*