iOS Musician Apps (61) Supported Technologies is Audio Unit (AU), Type is Tool

"StepPolyArp Unit" is a real-time polyphonic and polyrhythmic MIDI step arpeggiator and step sequencer. It can be used as a standalone application or an Audio Unit MIDI effect plug-in.

Velocity Filter is the way to make all your synthesizer patches respond to MIDI velocity in a natural and musical way.

A simple free music player that allows you to play music files while playing effectors that support Audio Units Extension (AUv3 plugin) format.

VS provides a creative way to generate beautiful graphical representations of your music projects. Driven by both audio and MIDI data, VS is the visual equivalent of a traditional synthesizer.

BeatCutter is an experimental multi-channel app for slicing and recombining sound based on rhythm.

Tube AU is a web video player audio unit plugin.

Now available as an Audio Unit extension (AUv3) allowing it to act as a powerful MIDI sequencer and clip launcher.

AUv3 Midi sequence generator which generates musical evolving sequences  that you can further automate or modulate via midi.

RhythmBud is a MIDI effect application that would transform incoming MIDI messages into the rhythmic pattern you will create on its editor.

ScaleBud is a music theory tool for composers, artists and learners. It has more than 40 most popular scales and counting.

MIDI Tape Recorder is an open source Audio Unit v3 plugin with a radically different approach towards MIDI recording.

Get audio visuals with your AUv3 host or the standalone app. Scope uses a two-axis graph to give a visual representation of a waveform over time, with the horizontal axis representing time and the vertical axis representing the amplitude.

This is an AUv3 compatible Multi-Track Recorder plugin specifically designed for AUM and other DAW's that don't support audio recording capabilities.

Metronomics is not only a metronome, but a tool designed to help build a solid sense of time and rhythmic security.  It's a new kind of metronome -- use Metronomics to generate random patterns, sequenced grooves, or a combination of both to help you practice with more than just your typical click track.

StepBud is a MIDI Sequencer with Audio Unit AUv3 plugin, Audiobus and Ableton Link.

ArpBud 2 is a MIDI Arpeggiator app where you can create unique arp patterns and be able to arpeggiate your favorite software or hardware synthesizers.

apeMatrix is a unique AU/IAA routing tool that gives you total control over what you want to do and how you want to do it.

Camelot is a live performance & production tool connecting Hardware & Software Musical instruments to a single management system.

LoopBud is a super simple yet very powerful MIDI recorder and looper.

SnakeBud is a 16-step AUv3 MIDI Sequencer with a 4x4 grid. You can set the note, gate, velocity and probability values for each step and you can also toggle them on/off.