iOS Musician Apps (291) Supported Technologies is Inter-App Audio (IAA), Type is Instrument

Accordion Vintage is a virtual sampled instrument based on an original Italian accordion made in Castelfidardo in the 60s years.

Electric Vintage is a virtual instrument based on a reproduction of a famous vintage electric piano (1976).

SynthMaster One iOS is the mobile version of KV331 Audio's SynthMaster One software synthesizer.

Multilevel Interactive Sound Synthesizer. Up to 240 Frequency Modulation Oscillators or simple Wavetable Additive.

mood is a personal interpretation of the legendary Analog Synthesizer by Eugenio Giordani

Pure Synth® Platinum is a full-blown rompler/synthesizer for your iOS device. Neither the synth engine or the sample engine is an afterthought: Both engines are fully capable and feature-rich. The romper section contains a well rounded assortment of analog, synth, string, digital, and acoustic instruments.

Wotja X is a new cross-platform interface for the 'Wotja Generative Music System'.

DrumPerfect Pro, the Human Feel Drummer for iOS.

Annoydio jr has a grid of pads which you can assign, manipulate, and play sounds.

Medly takes a new approach to the way music is made, letting both seasoned and new musicians make epic music. Just pick your instruments, draw notes, record & sing, and drag & drop one of over 700 loops or samples.

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

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.

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

Pure Piano is a professional, multi-sampled concert grand piano with a unique Morph Pad that allows you to explore a multitude of sounds ranging from mellow and intimate tones to surreal, cinematic textures.

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.

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

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

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

World of Bagpipes Pro is a five sounding sets of bagpipes for the iPad that are played using standard Scottish piping fingerings.