iOS Musician Apps (485) Supported Technologies is Inter-App Audio (IAA)

PolyHarp is a virtual musical instrument and a thought experiment. It's a testbed for harmonic theory as well as a great multi touch simulator of the good old "idiot zither" you have in the attic.

With MusicStreamer you can stream sound to Chromecast or Airplay speakers.

Real time vocal processor + recording app.

Mic Room is a microphone modeling app for your iPhone or iPad.

VocaLive offers singers and vocalists a suite of real-time professional vocal effects along with a recorder/DAW for studio quality sound (via in-app purchase), a looper for creative vocal experimentation (via in-app purchase), plus the ability to re-mike the input microphone with the Mic Room feature to add the sound and color of coveted studio microphones, all in a portable package (via in-app purchase).

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

With a library of editable patterns, loops, and fills, Drum Session is a very fast, simple way to put together a complete drum track.

Droneo is a synthesizer which drones with various timbres and precise intonations that blur the distinction between tones, timbres and chords. Its drone is great for meditation, centering, and calming,  walking and biking, but also can be set up for discordant noise and insect-like buzzing and chirping.

Mimicking the layout of Hohner's iconic piano accordions, this intuitive virtual accordion is easy to play and sounds exactly like the real instrument.

Based on Hohner's iconic Corona Classic diatonic accordion, this virtual accordion app plays in all five of the most popular tones: EAD (Mi), FBbEb (Fa), GCF (Sol), ADG, and BbEbAb.

Sir Sampleton is a sampling musical keyboard inspired by Casio and Yamaha samplers from the 80s.

Amp ONE transforms your iPad into a high quality guitar tube preamp / guitar cabinet with a set of the most important effects for making music in real-time.

nsTuner is a chromatic tuner that helps you tune your instruments.

An effect instrument anyone can play - sonic anarchy in the palm of your hand.

Cycle is a time lag accumulator - a musical system that repeats the notes you play over and over until they gradually fade into silence.

CHAiOS SYNTH 2 is a synthesizer/melody generator that creates unique melodies with just one tap.

"Stravinski" is a melody generator that creates eight-bar piano melodies with adjustable complexity.

Ignite the Saturn 5 rocket and communicate between capsule and Houston while your voice is transformed live into a real Apollo astronaut.

Music Studio offers a complete music production environment with features and a sound quality previously only known to desktop applications and expensive audio hardware.

Play the Traditional Irish Bagpipes on your iPad.