iOS Musician Apps (213) Instrument Sounds is Keyboards

Dedicated monophonic synth bass synthesizer.

High fidelity Synthesizer designed for generating Binaural beats and exploring alternate scales.

Portable Music Production Studio : create beats, compose whole tracks, sample, record, sequence, perform, mix and arrange your own music.

Beatonal is an accessible music making app, enabling you to easily create and share your musical ideas using the built-in synthesizers and drum machine.

A strange noise-making device.

bent.fm is a full FM model of a circuit-bent synthesizer.

The BLEASS Alpha Synth is a virtual analog polyphonic stereo synthesizer inspired by classic analog synths and enhanced by the BLEASS’ very own musical and technical approach. 

Fed up with standardized presets and instruments? Feel lost in overcomplex filters and effects? Don’t wanna sound like everyone else? BLEASS is just the right instrument for you: it unleashes your inner musical creativity by bringing music production and performance to its very core: play, perform, compose beats and melodies in a new yet intuitive way thanks to its multitrack sequencer, synthesizer and drum machine.

Borderlands Granular uses a technique called granular synthesis, which involves the superposition of tiny fragments of sound, or “grains," to create complex, evolving timbres and textures.

Branches is a semi-modular synthesizer inspired by classics of the past. It runs both as a standalone instrument with support for external MIDI input or as a plugin (AUv3) in your favorite DAW app.

Caustic 3 is a music creation tool inspired by rack-mount synthesizer/sampler rigs.

CHAiOS SYNTH 2 is a synthesizer/melody generator that creates unique melodies with just one tap.

This is the official and the only Chamberlin app with sounds from the original library. It contains 8 sounds from both the Chamberlin library and an emulation of the sound characteristics of the M1 Chamberlin.

Chiptunes Pro lets you make retro music the way it should be made - with chips. Build your circuit to lay down drum beats, basslines, and tunes.  No knowledge of electronics needed.

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

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

Combo Organ Model V is a musical keyboard app for iPad/iPhone/iPod touch that simulates the electric transistor organ, is called a Combo Organ. It was a big success in the 1960s.

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.

Crystal Synth XT is a full featured semi-modular synthesizer, ideally suited to creating lush evolving soundscapes.

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