More than 110 scales!

  • ScaleBud 2 has more than 110 scales built-in!

    You can work with notes or chords of any scale in any key.

    ScaleBud 2 also allows you to create your own custom scales as well.

    You will be able to use your custom scales in other bud apps like MelodyBud and SnakeBud.

AUv3 MIDI Keyboard.

Multiple Keyboard Rows

  • You can create as many keyboard rows as you want with ScaleBud 2.

  • You can assign different key/scale/chord to each keyboard row.

  • You can control the keyboard rows with your MIDI keyboard or multiple MIDI keyboards.

  • With the new "round off-scale notes" feature, ScaleBud 2 will play the off-scale note you played to the nearest note in the scale.

Multiple keyboard rows.

Advanced MIDI Mapping

  • ScaleBud 2 has an advanced settings screen where you can add/remove/configure each of your keyboard rows.

    You can enable/disable the MIDI in/out, MIDI channel, note range and transpose settings for each keyboard row.

    With the note range settings, you can split your MIDI keyboard and play different ScaleBud 2 keyboard row.

    You can play chords on the one side of your MIDI keyboard and play different scales on the other side of your MIDI keyboard.

Advanced settings.

Take advantage of the AUv3 Plugin

  • ScaleBud 2 runs as standalone app as well as AUv3 MIDI Plugin.

  • You can create AU presets and use AU parameters of the AUv3 plugin.

  • ScaleBud 2 offers 10 AU parameters where you can control or even automate every single parameter.

  • The custom scales you created shared between all AUv3 instances and the standalone app.

AUv3 support.

Download for iOS or Apple Silicon

Open source

ScaleBud 2 offers its core componets on Github.
They are all shared libraries for iOS, macOS and tvOS platforms, written in Swift.

Music Theory

A music theory library with Note, Interval, Scale and Chord representations in Swift enums.


@IBDesignable Horizontal or vertical UIControl subclass that can start from bottom or middle of the control.


Free library for iOS.

Other Apps

ArpBud 2

AUv3 MIDI Arpeggiator.

ChordBud 2

AUv3 MIDI Chord Sequencer.


AUv3 MIDI Recorder.


AUv3 Techno Bass Lines.


AUv3 MIDI Sequencer.


AUv3 MIDI Generative Sequencer.

ScaleBud 2

AUv3 MIDI Keyboard.


AUv3 MIDI Sequencer.


Multitrack Polyrhythmic Sequencer.


MIDI CC Sequencer.


AUv3 MIDI Sequencer.

In Theory

AUv3 MIDI Keyboard.


Bud App Controller.


Binary Based MIDI Sequencer.

Auto Bass

Bassline MIDI Generator.


Physics Based MIDI Sequencer.


Generative MIDI Sequencer.

Auto Fills

Drum Fill Generator.


MIDI Arpeggiator.


Generative MIDI Sequencer.

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