AudioKit Synth One 

“A Stunning Endeavor!” – Electronic Musician Magazine

Update: Synth One now featured in every Apple Retail Store in USA! Read More

“AudioKit Synth One is a wonderful example of how iPad can change the way music is made.”
– Apple, App Store Editorial Team

Press: Download Hi-Res iPhone/iPad Screenshots

Update: Synth One is now available for iPhone! Read More

Created by volunteers, the app includes MIDI support (play it with a MIDI keyboard or controller), sequencer, vintage-inspired analog filters, expressive arpeggiators, warm analog delays, and, over 300+ presets to get you started!

“Best iOS Apps of 2018” – Music Radar
“Best iOS Music Apps of 2018” – Cult of Mac
“Best of 2018: iOS Apps for Musicians” – Ask.Audio

“This groundbreaking iOS synth app is free and easy for beginners to learn on!” – Cult of Mac

“BEST APP OF 2018, Runner up”
– STUFF Magazine Gadget Awards

“A MUST HAVE Synthesizer for iOS Musicians”
– Synth Anatomy

“App of the Week”
–, July 2018

Plus, it’s completely open-source.
Use the source code to learn how to build your own synth app or modify the app yourself. Anyone can contribute code & features!

AudioKit Synth One

The Largest Free & Open-source iOS Music App in History

FEATURED BY: Apple, Engadget, The Verge, Lifehacker, Ask Audio, CDM, Computer Music, Cult of Mac, Music Radar, Electronic Musician, Future Music, MacBreak, Music Tech, PC Mag, Sonic State, Stuff Mag, Synth Anatomy, Synthtopia, Tech Radar, Apple Retail Stores, App of the Day, Editor’s Choice …

AudioKit Synth One is the world’s first completely free & open-source full-featured professional iOS synthesizer app.

“It’s a big step forward for mobile music”
– CDM (Create Digital Music)

“A Stunning Endeavor… Sounds Amazing!”
– Francis Preve, Electronic Musician Magazine

“Amazing & Brilliant… Sounds fantastic!”
– The Sound Test Room

“A great example of human endeavor”
Gaz Williams, Sonic State

“Sounds amazing… the start of something huge.”
– Ask.Audio

“Beautifully designed, sounds great, and above all, fun.”
– Cult of Mac

“Feature-packed synth for your iPad… professional-level”
– Engadget

“A labour of love that everyone can enjoy”
–  Music Radar

“It’s a must-download for every iPad owner”
– MacBreak “Pick of the Week”, July 2018

Exclusive sound design and consulting from engineers and synth techs who have worked with M83, Tycho, Rihanna, Kanye West, Mike Posner, Savoy, Owl City, Tegan & Sara, Neon Trees, Red Sky Lullaby, Brice Beasley, DJ Puzzle, Electronisounds,
James Edward Cosby, and more!

AudioKit Synth Features:

This synthesizer is completely free, fully functional, and ad-free.  It’s the ultimate free iPad music instrument app.

  • Hybrid Analog/FM Poly Synth (6-voice)
  • Over 300+ Presets crafted by famous sound designers
  • Accessibility! Voice Over for the blind & visually impaired
  • Audiobus 3 & Inter-app Audio (IAA)
  • AUM, BeatMaker 3, Cubasis, GarageBand, etc 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
  • Ableton Link
  • 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
  • MIDI Bank (MSB)/Patch Change & Sustain Pedal support
  • Compact app size (under 50mb)

“It WOWS you… immediately fun to start tweaking”
– Discchord

“Best of all, it sounds as good as most of the $25 iPad synths”
– Markkus Rovito, Keyboard Magazine/EM Magazine

Make music your way – Arrange the views to suit your tastes!

This is the perfect synth for those who like to make their own sounds- Easily sculpt and customize your own sounds!

Free download for iPhone & iPad!

AudioKit Synth One Videos