ButterSynth

ButterSynth is a hybrid 6-oscillator synthesizer that blends wavetable, FM, and sample-based engines to create a vast sonic range. It runs as both a standalone instrument and an AUV3 plugin, with a thoughtfully designed interface and a powerful modulation matrix that unlocks deep sound design and experimentation.

From a dual-wavetable engine with phase modes and a built-in editor to 4-operator FM, sample/granulator engines, and a 32-slot modulation matrix, ButterSynth offers almost limitless sonic potential. An integrated FX rack, extensive preset libraries, and easy file management via the Files app make it quick to create, store, and share sounds. The 4-tab UI keeps programming fast and fun for both beginners and advanced users.