ChordBud is an all in one app that combines most important concepts when sketching a song. You have tons of scales, their harmonic fields, option to choose triads, 7th and extended chords with their inversions, most common chord progressions with the ability to creating your custom progressions and even notes if you want to sketch a melody or bass, all under your hand.

ChordBud does not generate sound but has a built-in MIDI sequencer that sends MIDI to other MIDI-enabled apps in your iOS device, connected MIDI hardware and CoreMIDI enabled software on your Mac or PC via network session. It auto-detects available MIDI destinations and lets you choose which one you want to connect. Also, it supports Ableton Link as well!

You can add up to 16 tracks to your projects, add chords or notes to your tracks and assign different MIDI channels to them and sketch your ideas into a real song.

Lots of scales, chord progressions, harmonic fields, triads, tetrads and extended chords with rich editing features are waiting for you to create your next awesome song.

ChordBud also offers its core components open sourced on GitHub. Feel free to fork them, send a pull request to make it better, open an issue to share your ideas or give them a star if you like them.

What’s New

Version 1.1.1

Minor fixes and improvements.

New features recap:
- History (undo/redo up to 10 steps)
- Multiple input editing (Hold your finger on the timetable for a second to drag-to-select tool)
- Custom duration for sequencer (It was auto-calculated based on the longest track in your sequence, now you can set it on the timetable with range pointer)
- Change octave for the individual inputs (Used to be all inputs share the same octave in the same track and only can change from the track settings. Long press an input for the "octave change" menu item)
- Chord inversions

Ratings and Reviews

4.4 out of 5
11 Ratings

11 Ratings

The pole bean ,

Neat idea needs some more development

I was looking for a iOS app to send midi to my DeepMind12 synthesizer over WiFi connection. This was fun to use especially with the arpeggiator on my DM12, however it’s a little buggy. When I hit the stop button notes would get stuck on. It is a little hard to modify chord progressions on the fly, and I end up deleting the whole progression and building it from scratch to change the chord lengths, etc. I would love to see this updated with more functionality but this is probably a niche app without many users. This seems to be a little weaker than some other chord Apps if you’re just wanting to use it for a chord reference tool. Doesn’t quite have the ease of use down to be a true composition tool in my workflow for triggering other synths. Still on the hunt for that app that strikes the right balance. Right now this is fun if you’re just trying to play with very basic harmonic structure which you can flesh out in other sequencers or daws.

MAg the Cat ,


I got robbed paying for this! It's junk..very buggy and the midi transfer doesn't work. I want my money back.


Cem Olcay
39.4 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Turkish

Age Rating


  • Family Sharing

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

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