iOS Musician Apps (579) Supported Technologies is Audiobus

Syntorial is a synthesizer training app, that will teach you how to program synth patches by ear.

Sinusoid is an 8-bit inspired tracker/sequencer sound toy.

SoundSaw is a complex sound processing app with easy-to-use controls designed to distort the sound of musical instruments or voice, and give the sound the aesthetics and atmosphere of noise, lo-fi, chiptune and experimental music scene.

Synthecaster fuses elements from guitars and keyboards into a full range polyphonic instrument that is intuitive, accommodates a wide variety of playing styles, and generates an even wider variety of sounds.

Slow down music, choose the perfect pitch, and learn to play by ear.

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.

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

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.

A highly playable and extremely flexible "echo centric" multi effects processor.

Shape is a polyphonic synthesiser allowing the user to draw the shape of the oscillator waveform.

iFretless Brass enables guitar and string instrument players to play expressive music with a variety of instruments.

Crystal Synth XT is a full featured semi-modular synthesizer, ideally suited to creating lush evolving soundscapes.

Moebius Lab is a multimorphic sound processor which contains a synth, a varispeed stereo sample player, effects and LFOs that can modulate each parameter.

SoundScaper is an experimental sound mini lab for creating unusual soundscapes, atmospheric textures, drones, glitches and noises based on circuit bending principles.

No time to delve into the big and serious music apps? PixiTracker is what you need! It is a simple and fun tool to quickly create musical sketches, chiptunes and sound experiments.

Holding the simplicity of eighties instruments and carrying their raw heritage to you, it turns your device into a pocket beat making companion. I believe that designing a pure interface, simply displaying your machine without any distraction, was the best way to reflect the spirit of the period it was born.

Advanced field recorder combined with a sound warp engine and a collection of ready to use dynamic presets.

rrarrow is the experimental noise machine / modular audio effect for the iOS featuring extended feedback capabilities.

The Moog Model 15 App is the Moog modular synthesizer and synthesis educational tool.

PixelWave is an experimental synth with old school pixel interface.