iOS Musician Apps (115) Supported Technologies is Inter-App Audio (IAA), Instrument Type is Synth

GarageBand is a DAW by Apple.

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

With the special lightweight version of SynthScaper LE you can easily create and modify your own multi-timbral pads and atmospheric soundscapes.

Synthesizer specially designed for creating and experiments with ambient soundscapes in wide range from noises to melodic instruments and everything in between.

Cyclop is a monophonic synthesizer. It does one thing very well: delivering cutting-edge digital madness at the low end of the frequency spectrum.

Musyc is a fun and innovative music application where touch turns into music.

DRC is a virtual analog polyphonic synthesizer that recreates the characteristic sound of an analog synthesizer.

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

ID700 is a software synthesizer based on the voice architecture of the Buchla 700. Sound generation is achieved primarily via FM synthesis and waveshaping.

A matrix-controlled arpeggiator designed to play with your thumbs.

A Simple Ad-Free Piano-like Musical Keyboard. Easy to Play, Good Response and Small Application Size. Just Play the Instrument. The app doesn't use sampled real sounds but use FM synthesis. It sounds like piano though it's false.

Laplace is a physical-modeling synthesizer based on resonator synthesis that makes it easy to create bowed string, plucked string, blown pipe and metallic sounds.

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

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.

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

Pure Acid is a bassline synthesizer and drum machine in one app.

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

Phawuo is a monophonic virtual-analog synth with "dirty" oscillators. Good for bass sound and effects.

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