Chordbot is a songwriting tool / electronic backup band that lets you create and play complex chord progressions in different arrangements easily. Just add some chords, select a comping style and hit play.

Use it for songwriting experiments, to create backing tracks for practicing solos, or just for fun. Easily create arrangements and mixes by selecting from hundreds of piano, guitar, synth, bass and drum tracks.

This is a fully functional evaluation version of the full (paid) Chordbot version. It has all the features of the full version, but with disabled save and export features.


* 60+ chord types
Including classics like AugAdd2 and Min7(#11), in all inversions.

* 70+ comping style presets
Simple but usable arrangements that won't get in your way.

* 400+ instrument tracks
Individually mixable dynamic instrument tracks that can be combined to form unique comping styles.

* Inversion control / slash chords
Manually select chord inversions, or let Chordbot select the smoothest inversion automatically.

* Song sections
Songs can be structured into repeatable sections (verse, chorus, etc). Each section can have its own comping style/arrangement.

* MIDI/WAV/AudioCopy export and Audiobus support (full version only)
Refine your compositions in a DAW/MIDI sequencer or stream live audio directly to other Audiobus-compatible apps.

* Song-O-Matic
Automatic song generator with pop, jazz and experimental profiles.

See for more information and audio demos.

Please report all bugs to:

What’s New

Version 3.0.5

Minor bugfixes

Ratings and Reviews

4.4 out of 5
5 Ratings
5 Ratings
Sketch Tuner ,


Prior to an update months ago, this was a useful product I considered buying. Unfortunately, the updated version crashes every ten minuets and the project disappears. It WAS useful, until the update made it keep crashing on my 4s and 5s. Of course, the solution would probably be to buy an iphone 7 or the soon to be 8, but I don't have a thousand dollars to spend.

nirvana11089 ,

Simply the best

Thanks, this is the best app for making backing tracks, I searched a lot to find it

leo8750873 ,


This would be better if it was a 'free version', not a demo.* at least it dont have 'full screen' ads that appeat each 2 minutes, like most other demos, actually i dont seen any ads, only when you try to use a full version only feature, it says "buy the full version".

*If you think demo and 'free version' are the same thing, you're wrong, demo is something free and very limited, it's only function is to make the user know what he will buy in the full version. free version is just a free complete app, and full version is a paid more than complete app, with aditional features.


Contrasonic AB
34.2 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2013 Contrasonic AB


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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