Bit Maestro 4+

Unique AUv3 Bitcrusher

David Blake

Designed for iPad

    • 4.7 • 23 Ratings
    • $4.99



Bit Maestro is an AUv3 bit crusher that goes beyond regular bit rate reduction, allowing you to affect and manipulate your sound at the individual bit level. Taking inspiration from the legendary ‘OTO Biscuit’ it enables you to selectively mute or invert individual bits in your audio signal. As it does this it creates distortions in your waveform, introducing a wide range of harmonics. Bit Maestro pushes this concept even further, allowing you for the first time to even rearrange the order in which the bits are evaluated, reassigning their value and giving rise to waveform distortions not previously seen in any distortion module.

This sound can be further enhanced in a number of ways.
- Three filters are available (low pass, low shelf, high shelf) which can be used to tame or enhance the aggressiveness of the sound.
- A delay line to inject a different groove into a bar or provide a basis for interesting mod effects.
- A modulation panel to continually evolve your sound and introduce further aliasing effects.

The end result is a plugin that can introduce huge depth and power to your sound. One that offers you the nuanced control to design your perfect digital distortion, ranging from subtle warbling to huge crushing sounds that can transform any drum or bass line.

- AUv3
- MIDI control
- Inter-app Audio
- Audiobus

What’s New

Version 1.1.1

Version 1.1 - MIDI Update
- Exposed AU Parameters to hosts
- Added 'Music Effect' Audio Unit. Use this Audio Unit when you want to send MIDI messages. Assign MIDI CC/Notes to various controls by toggling the MIDI icon in the top right.
- Added optional gain limiter (can enable in this the settings menu)
- Added way to overlay the header menu (with presets/midi/settings options) when the view is in its most compact form.
- Made filter controls adjustable when filter is off
- Improved compatibility with Cubasis automation
- Added 5 new presets
- Tweaked app icon
- Fixed various graphics issues

- Fixed bit board help menu

Ratings and Reviews

4.7 out of 5
23 Ratings

23 Ratings

polarpaul ,

Flexible Distortion

The app has a multitude of controls so you can shape and dial in exactly the sort of distortion you’re after. You will want to be careful with your levels and including a limiter in your sound chain can prevent these sorts of problems. A great tool for sound design.

AudioFanX ,

Glitch and distortion fun-fest

This app provides unique and great-sounding distortion/harmonic generation via a unique-on-iOS ability to turn bits on or off or invert them with some great filter action. This goes beyond bit-crushing. Truly great if you want non-traditional distortion.

mambonassau ,


Best - and most versatile - bitcrusher/distortion box on iOS! Honestly, I'd love to have a VST version for desktop... it's hard to get Oto Biscuit functionality for a reasonable price, and this plugin does its whole thing admirably.

Developer Response ,

VST might be a bit more work but porting it to an AU so it can run on macs shouldnt be tooo hard. Then we'll see how popular it is I guess 😆

App Privacy

The developer, David Blake, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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