iOS Musician Apps (56) Instrument Type is Synth, Free

Dandy is a sampler/synthesizer for iPhone inspired by Dandy Desmonds composition “Magnetic Loops for 15 Tape Decks” from 1938, which is one of the earliest known works of electroacoustic music.

Zillidrone is a sample-based groovebox for creating, performing and interacting with 32-step sequences for snares, kicks, hi-hats, sampler and two multioscillator synthesizers.

VOSIS is a synthesizer that uses scanned synthesis of greyscale image pixel data from photos or live video input. It is also a tool for image audification/sonification and visual music performance.

Each of the 2 oscillators offers a selection of 5 waveforms: sawtooth and pulse waves are here, along with noise, triple saw and triple FM waves. There's also an additional sub-oscillator strapped into the master section for added oomph.

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

Tone generator with two Oscillators and one Noise generator, each with individual lowpass filters.

TweakyBeat is a drum machine synth.

RD4 - Groovebox is a music making app with virtual analog synthesizers, drum machines and effects.

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

ToyTone is simple synthesizer. Select waveform, and move the slider. Tap the pad at bottom, you can play.

MonoStereo Synthesizer is a free full-featured analog mono synth with oscillator panning.

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

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

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

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.

Flexible and powerful frequency generator.