iOS Musician Apps (50) Instrument Sounds is Keyboards, Free

Primer is a synth equipped with the most essential controls and nothing more.

Syntorial is a synthesizer training app, that will teach you how to program synth patches by ear.

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

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.

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

HOWL is a simple vocoder/synthesizer. It uses formants to simulate the human voice and a pitch-space keyboard to help you find interesting melodies.

A strange noise-making device.

AutoArp turns your iPhone (or iPod Touch) into a musical instrument that is halfway between a traditional auto-harp zither and an arpeggiated analogue-style synth.

Endlesss is a free-to-use collaborative music studio with built in drums, synths, fx and much more. Easy to get started for the novice electronic musician with boundless opportunities for the seasoned creative.

Mynth is the new intuitive and powerful synthesizer by Fingerlab.

iPhilicorda is an emulation of a vintage organ from the sixties, the Philicorda, created by the Dutch company Philips.

Flynth is a synthesizer by Fingerlab, designed for musicality and easy use.

Mellowsound is an emulation of a legendary instrument, a keyboard sampler from the 60s used by many famous artists like the Beatles, David Bowie, Radiohead and many others, this mythic instrument is called The Mellotron.

Groovebox is a free music studio app packed with synths and drum machines.

Modulin is a customizable synthesizer. It allows for unique personal expression while providing a wide spectrum of visual feedback.

Play the vibe. Hear the magic. Syntronik is IK’s cutting-edge synthesizer that features the sound of the most iconic machines to ever grace the planet.

The concert quality piano app.

The concert quality piano app.

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

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