iOS Musician Apps (213) Instrument Sounds is Keyboards

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

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

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

iPulsaret is a new real-time software capable of all time-domain varieties of granular synthesis.

Play with the sound of a full cathedral organ, created by award-winning sound designer Kurt Ader.

Pure Piano is a professional, multi-sampled concert grand piano with a unique Morph Pad that allows you to explore a multitude of sounds ranging from mellow and intimate tones to surreal, cinematic textures.

Colossus Piano sets a new standard in terms of realism, detail and overall quality of piano sounds on your iPad, iPhone and iPod touch.

The second best sounding piano app in the App Store (after "Colossus Piano")!

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.

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.

Englitina is an authentic-sounding English Treble Concertina for the iPad.

OB-Xd is based on the Oberheim OB-X. It attempts to recreate its sound and behavior, but as the original was very limited in some important ways, a number of things were added or altered to the original design.

VOLT is a virtual analog synthesizer designed to create classic synth sounds while emphasising expressive play.

Agonizer is a monophonic synthesizer designed in collaboration with YouTuber and synth bass expert Jakob Haq of haQ attaQ

ShockWave is a monophonic Synthesizer designed to bring modular style workflow to the world of iOS & AUv3 plugins.

WoodSynth is a synthesizer with 4 independent layers. Each layer is in fact a synthesizer on its own.

The OPL is a digital sound synthesis chip developed by Yamaha in the mid 1980s. Among other products, it was used in sound cards for PC, including the Ad Lib card and early Sound Blaster series.

Designed to deliver authentic dub sounds and effects, iTALIZER at it's heart is a monophonic synthesizer paired with an authentic tape echo emulation.

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.

mood is a personal interpretation of the legendary Analog Synthesizer by Eugenio Giordani