iPad Screenshots


*** 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

What's New

Version 1.51

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

Ratings and Reviews

Best "chord" app out there

oyster ferret

I have tried a number of midi controller apps for non keyboard players and this is by far the best. The ability to save your own scenes, to configure the chord layout, the note choices within the chord is the best thought out design for all apps. I wish it had a little more control on velocity via an expression wheel but that's all



Amazing instrument in its own right. The fact you can control your other synths with it is brilliant. Great tool for composing and even performing! One of the best music apps.

Simple and effective


Very playable instrument. Not surprised many people are using it as a controller. This paired up with a fat synth engine is a powerful tool. In fact why don't you (developers) up the synth engine. There are people out there who will pay more for the app with more flexible synth built in I'm absolutely convinced. Well done and thanks!
P.s. also couple more fx (glitch, low pass filter) would be nice :)
Also slide right hand key to increase modulation would make it so much more expressive.
After a bit of playing I find it would be nice to have option of note labels on the right hand side. Also would be good to customize the auto mode or at least be able to assign custom notes on the keyboard for every chord.
One more: please make the drum and arp matrix bigger, as it is it is veeeeery fiddly. Thanks


Olympia Noise Co.
19.3 MB
Requires iOS 8.0 or later. Compatible with iPad.
English, French, German, Italian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish
Age Rating
Rated 4+
© 2017 Olympia Noise Co.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

More By This Developer

You May Also Like