iOS Musician Apps (557) Supported Technologies is Audio Unit (AU)

This synthesizer emulates male voice vowels in a unique way.

Tube AU is a web video player audio unit plugin.

bs-16i is a 16 multi-timbral playback sampler. It supports SoundFont and DLS (Downloadable Sounds, and can be used for keyboard instrument, MIDI sound module, and MIDI player.

Studio quality reverb for AUv3 / Audiobus / Inter-app audio and songs from your iTunes music library.

Dual Digital Delay FX. Two separate (stereo) delay lines allow for a wide range of effects ranging from basic slapback and ping-ping type echos to complex modulations and soundscapes.

KeyStage is a master controller, AUv3 host, and audio mixer app designed mainly for keyboard players.

Baervaag brings FM synthesis to the masses! An easy to use but still tweakable synthesizer, accessible to everyone.

Syndt is a polyphonic synthesizer with a lot of possibilities.

sequencism is a music sketchbook tool that allows the creation of short and simple pieces of music.

Cubasis 2 is a fully featured iOS-based music production system includes sequencer, instruments, effects and more.

This app is a music player that can process the following effects in real time: Time stretch (0.5-2.0 double speed), Pitch shift (-1 ~ +1 octave), 10 band equalizer.

Auria is a mobile music production system designed from the ground up for the iPad.

Branches is a semi-modular synthesizer inspired by classics of the past. It runs both as a standalone instrument with support for external MIDI input or as a plugin (AUv3) in your favorite DAW app.

Spring Reverb models the sound and character of popular spring reverbs found in guitar amplifiers, popularized by Surf, Garage and Rockabilly music.

Envelope is a high class reverb audio unit for use as a standalone app or (preferably) in AUv3 hosts.

ChannelEqualizer is a three band EQ AudioUnit Extension plugin, developed as an add-on for VADrumSM.

Neon is a lightweight digital audio editor and recording plugin compatible with any AUv3 host.

Gain Stage Acoustic makes electric guitars sound acoustic and makes acoustic guitars with piezo pickups sound more natural.

TalkWorks is an AUv3 plugin designed to give any sound a human vocal like quality by simulating vowel sounds found in human speech.

This one is quite experimental and CPU heavy app!