iOS Musician Apps (119) Supported Technologies is Inter-App Audio (IAA), Instrument Sounds is Keyboards

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

This synthesizer emulates male voice vowels in a unique way.

Tines emulates an electric piano.

Syndt is a polyphonic synthesizer with a lot of possibilities.

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.

Baervaag brings FM synthesis to the masses! An easy to use but still tweakable synthesizer, accessible to everyone.

Epic 64-voice Virtual Analog / PCM iPad Synth. Inspired by the Digital Synths of the 80s and 90s.

Free iPad instrument featuring the classic sounds of famous 80s FM Synthesizers.

Neo-Soul Keys® Studio 2 is the next evolution in electric piano sounds and effects from Gospel Musicians, which features a complete architecture overhaul using our new Pure Synth® structure and licensed VKFX effects.

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.

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

Combine 3 oscillators and a noise envelope to produce bright 80s-style synths, deep rich bass, punchy kicks and snares, a variety of screaming leads, and even breathy percussion.

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

LayR is a polyphonic, multi-timbral synthesizer for iPad and iPhone, delivering up to 256 voices of rich, multi-layered and textured sounds.

Cube Synth is a groundbreaking new software instrument giving you the power and flexibility of additive synthesis together with easy editing and morphing capabilities.

Tera Synth is a Modular Analog Synthesizer.

SunVox is a small and fast cross-platform modular synthesizer with pattern based sequencer (tracker).

The unique dynamic wavetable synthesis allows you to explore an unprecedented wide range of sonic territory.

Continua is a three-oscillator / dual-filter six-voice virtual analog synth, with fully polyphonic modulation sources and built-in custom-designed effects, for everything from complex, evolving chill-out soundscapes to New Wave synth stabs.

Ravenscroft Grand is a piano sampler.