iOS Musician Apps (504) Supported Technologies is Inter-App Audio (IAA)

BandShift is a realtimemulti-band auditory filter and frequency shifter.

The multi-band delay BandDelay is a tool for sound design and loop manipulation in realtime. In contrast to common delay processors BandDelay splits the frequency spectrum of the input signal into 27 bands and applies a separate delay unit to each band.

Bark Filter is a Critical Band Analyser/Filter/Compressor.

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

Real Guitar is a realistic guitar simulator apps.

BeatMaker is a drum sampler.

Musk MIDI Keyboard is an expandable MIDI keyboard.

A streaming sound palette for experimental musicians, sound designers and artists. Includes over 40 preset randomized Internet audio streams.  

Want to sing as a popstar on AutoPitch, live-pause your voice, talk with a deep robot voice all at once? Voice Synth does all this and more, all based on your own unique voice.

Want to sing as a  popstar on AutoPitch, live-pause your voice, talk with a deep robot voice all at once? Voice Synth does all this and more, all based on your own unique voice.

iShala is an Indian music software that combines a tabla machine, a lehra player and an electronic tanpura/swarmandal.

The ultimate orchestra sound app for sophisticated musicians by sound designer Kurt Ader, designed as professional sound module for your iPad, iPhone or iPod touch.

Oriental Strings is a professional sound module app for oriental keyboard players and for musicians who simply want to resemble the typical sound of the Middle East in their songs.

The second best sounding piano app in the App Store (after "Colossus Piano")!

This app contains the following instruments: Trumpet, Trombone and Saxophone sampled in four different brass sections.

Play with the sound of a full cathedral organ, created by award-winning sound designer Kurt Ader.

Colossus Piano sets a new standard in terms of realism, detail and overall quality of piano sounds on your iPad, iPhone and iPod touch.

AudioKit Synth One is a completely free & open-source professional iOS Synthesizer. 

The Amazing Noises Reverb is a Feedback Delay Network (FDN) Reverb Effect, which can create nice reverberated ambiences, from small rooms to huge buildings.

Dedalus Delay is a real time audio mangler. A network of delay lines is continually granulated and modulated, producing a labyrinth of echoes, which are further processed by filters, dynamic processors and saturation modules.