iOS Musician Apps (625) Supported Technologies is Audio Unit (AU)

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.

GarageBand is a DAW by Apple.

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.

iDensity is a new real-time software designed for asynchronous sound file granulation, a genuine granular playground able to generate a wide range of effects.

Play any synth or virtual instrument with your trusted old guitar, or record notation by playing it.

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

iPulsaret is a new real-time software capable of all time-domain varieties of granular synthesis.

Play or save the files with added reverb. Use play through mode or Audiobus for realtime reverberation.

If you play a musical instrument, this app should be supported by you lower the speed and play when you copy of a musical piece.

Vector is the swiss army knife of digital audio. Record audio, edit existing audio files, convert your music between the most common audio file formats, digitize your old vinyl records or record internet radio stations*.

If you play a musical instrument or sing a song, this app should be supported by you higher / lower the pitch.

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

iSEM is a recreation of the classic 1974 Oberheim SEM (Synthesizer Expander Module), one of the world's first self-contained synthesizer modules and the first to bear the "Oberheim Electronics" name.

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.

Musk MIDI Keyboard is an expandable MIDI keyboard.

Play your iPad with external MIDI instruments, accordion-MIDI, soundenlargement for your stage-setup or as stand-alone for training and learning at home.

A step sequencer for creating melodic loops, chord progressions, arpeggios, drum grooves and basslines.

apeFilter is a sophisticated Equaliser, the DSP is based on the Biquad/Cascade filters, very fast!