AudioKit Synth One

UPDATE 2025: This App has been replaced. New version:
AudioKit Synth One J6

Synth One is the world's first professional free & open-source iPad Synth:

• Includes over 300+ presets by sound designers who have worked with M83, Tycho, Rihanna, Kanye West, Red Sky Lullaby, Brice Beasley, Dj Puzzle, Electronisounds, James Edward Cosby...
• Hybrid Analog/FM Poly Synthesizer.
• Over 300+ Presets crafted by famous sound designers.
• Audiobus 3 & Inter-app Audio (IAA).
• AUM, BeatMaker 3, Cubasis, GarageBand compatible.
• Five Oscillators (2 DCO, FM, Sub, Noise).
• 2 Assignable LFOs with dozens of routing possibilities.
• 100+ Alternative Scales & Tunings.
• Vintage-Style 16-Step Sequencer.
• Classic poly arpeggiator.
• MIDI in (Control with a MIDI Keyboard or DAW).
• Touchable ADSR Envelopes for Amp & Filter.
• FM Oscillator w/ Mod.
• Dedicated Sine/Square -12/24 Sub Osc.
• 4-Pole Vintage Low-Pass Filter.
• High-Pass/Band Pass Filters.
• Mono portamento & legato.
• Beautiful Sean Costello Reverb.
• Multi-tap (ping-pong) delay.
• TouchPads.
• Preset Import/Export & More...
• MIDI Learn on all knobs.
• Compact app size (under 25MB).
• MIDI Bank (MSB) /Patch Change & Sustain Pedal support.
• Full Source code included.

{See video at top of page}