iOS Musician Apps (145) Supported Technologies is Audiobus, Instrument Type is Synth

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

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

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.

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

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

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.

The BLEASS sidekick AUv3 is the world's first iOS AUv3 effect plugin that offers a kick drum synth and sequencer coupled with a sidechain compressor in order to bring unique and creative dynamics to your music!

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.

BLEASS Granulizer generates short samples (‘grains’) from different input signals by modulating different parameters which you can visualize thanks to a 3D Visualizer.

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.

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

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

Attack Drums is a synthesizer designed mainly for drum sounds, but the powerful sound engine can also be used for everything else - including vocals.

Arpeggist is a MIDI Note arpeggiator with a very flexible step matrix editor for programming and a unique “rolling dice” random arpeggio generator.

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

Arctic Pro Synthesizer / Vocoder is a modern subtractive synthesizer.

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.

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