iOS Musician Apps (285) Supported Technologies is Inter-App Audio (IAA), Type is Instrument

PixiTracker 1BIT is a simple and fun tool to quickly create musical sketches, chiptunes and experiments with TRUE 1-BIT SOUND (like on old microcomputers).
No musical knowledge required.

KQ MiniSynth is a polyphonic modular synthesizer.

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.

Thanks to it's true VA synthesis engine, the use of analog-modelled non-linear filters and extensive modulation options, Flowtones sounds warmer and more analog than digital romplers and wavetable-based synths.

Harness the enormous power of 8 polyphonic synths: meet KASPAR Supersynthesizer.

Galileo Organ 2 is a tonewheel and transistor organ app.

Roxsyn is a metamorphic guitar synthesizer.

Kauldron is a synth with new modeling technology, combined with features help you create aggressive synth sounds full of rich analog textures with the fewest knob tweaks.

iFretless is a guitar fretboard re-designed for maximum playability on iOS devices.

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

This is the app for guitar, bass, and strings players who need realistic woodwind instrument sounds for recording or live performance.

iFretless Bass is a professional virtual instrument that provides bass and guitar players with an expressive fretless playing surface.

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.

Lagrange synthesizer has two oscillators, a noise generator and two filters that can be selected from various algorithmic models.

You found it! Drum Beats+ is the metronome app that improves your timing using great sounding drum beats, not a boring click.

Mersenne is a melodic percussion synthesizer that combines two FM synthesis modules, a noise generator and a resonator.

Redshrike is a polyphonic synthesizer that combines a resonator designed to make more complicated sound creation and subtraction synthesis with an FM oscillator that creates violent distortion.

Lorentz is not only a live-oriented analog modeling synthesizer, but also has a resonator that makes metallic and aggressive sounds.