iOS Musician Apps (318) Supported Technologies is Inter-App Audio (IAA), Type is Instrument

Navichord is a modern MIDI controller, working with software and hardware synths.

SynthDrum Pads 100% synthesized signal path, Virtual Analog Drum Synthesiser, with 32 step sequencer.

S-Modular is a semi modular synthesizer for your iPad.

Meet Aimée, your personal, artificially intelligent built-in assistant composer, she's ready to help you compose great music, adding her vast knowledge about music theory to your creativity.

SynthMaster One iPhone is KV331 Audio's first full blown synth app for iPhone. It's a powerful wavetable synth with an intuitive workflow. With its simple layout, rich wavetable/waveform content and inspiring factory presets library, designing new sounds with SynthMaster One iPhone is a joy.

The Optigan, short for Optical Organ, was a chord organ from the early 1970’s.

AnalogKit lets you play, share, and build synths and effects in an incredible digital playground.

Expand your musical horizon by playing Arabic, Armenian, Balkan, Greek, Klezmer, Persian & Turkish sounds, scales and rhythms.

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

Even if you've only played air guitar, ThumbJam lets you sound like a pro.  Pick an instrument and jam - with all the scales to choose from you'll never hit a wrong note.

Turning your iPad in to a classic sounding theremin.

A deeply sampled iOS instrument with true legato, and the only virtual instrument with Sexiness Control.

Trapezoid is an amazing Hammered Dulcimer app for the iPad.

Experience playing the full, lush tones of a Dusty Strings D550 chromatic hammered dulcimer right on your iPad.

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.

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.

MegaCurtisBig uses an unusual hybrid of wavetable and granular synthesis to create tones and timbres quite apart from the standard FM or subtractive synthesis fare.