AudioKit Synth One J6 + AUv3

AudioKit Synth One J6 + AUv3

Pro Analog Synthesizer Fun!

2.4K ratings
160 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • June 17, 2025
  • October 3, 2026

Features

AudioKit Synth One J6 + AUv3 video #1 for iPhone
AudioKit Synth One J6 + AUv3 screenshot #2 for iPhone
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AudioKit Synth One J6 + AUv3 screenshot #5 for iPhone
AudioKit Synth One J6 + AUv3 screenshot #6 for iPhone
AudioKit Synth One J6 + AUv3 screenshot #7 for iPhone
AudioKit Synth One J6 + AUv3 screenshot #8 for iPhone
AudioKit Synth One J6 + AUv3 screenshot #9 for iPhone
AudioKit Synth One J6 + AUv3 screenshot #10 for iPhone
AudioKit Synth One J6 + AUv3 screenshot #11 for iPhone
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About

This app offers a professional-quality virtual analog synthesizer inspired by classic hardware. It provides a vast library of presets, real-time effects control, and a user-friendly interface for both beginners and experienced musicians. It can be used as a standalone instrument or as an AUv3 plugin.

✓400+ Presets
✓Dual Assignable Touch Pads
✓Real-time FX Control
✓3 LFOs with extensive modulation
✓MIDI Keyboard and MIDI Learn support
✓Classic Step Sequencer
✓AUv3 Plugin support
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What users say

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+3

What's New in AudioKit Synth One J6 + AUv3

0.999.5

October 3, 2026

THANKS EVERYONE! UPDATE: Better Preset Sync. You don't even need to import your banks into the Mac version. It will happen automatically if you do this: "Preset Sync" must be turned on separately on each device in the About page (the button in upper right of app header) Open the standalone app on your iPad and turn on the Preset Sync button. Choose Enable Sync when prompted. Repeat these steps in the standalone app on your Mac. Both devices must use the same iCloud account. Leave both apps open while your presets sync automatically. To check sync status or manually refresh, tap the ⓘ beside the preset-sync control and choose Sync Now. Plus all the 0.999 updates: Includes everything from last MASSIVE UPDATE! APPROACHING VERSION 1.0 This is one of our biggest updates yet. After a year of work, SYNTH ONE J6 is expanding to Mac, adding major accessibility and microtonality features, new Chorus, preset syncing, and a whole lot more. • NEW NATIVE MAC VERSION! SYNTH ONE J6 is now available on Mac, with native support for both Apple Silicon AND Intel Macs, plus AUv3. The app has been tested in Mac on Ableton, GarageBand, and Logic so far. This is our first Mac app, so please be patient with us as we work through any early issues. If you find a bug, we'd genuinely love to hear about it: matthew@audiokitpro.com • ACCESSIBILITY! Major accessibility improvements have been added throughout the app to make SYNTH ONE J6 a much more enjoyable instrument for blind and visually impaired musicians. This is an area we care deeply about, and we'll continue improving it. • MICROTONALITY! SYNTH ONE J6 now has full microtonal support • Import Scala tuning files • Explore World Scales with keylock • Western scales (ie Ab Minor, G# Blues) • Create music far beyond standard 12 tone tuning • Use alternate tunings across iPhone, iPad, and Mac • PRESET SYNC! Your presets can now automatically sync between iPhone, iPad, and Mac. Create a sound on one device and continue working with it on another. Turn on Preset Sync in the Settings panel by tapping the [i] button. NEW SYNTH FEATURES! • PWM: Pulse waveform added as a new oscillator choice • Pulse Width is now a modulation destination for LFO 2 and LFO 3 • NEW Noise Oscillator NEW V2 FILTER inspired by the character of the J106 Tap the Filter header to switch filter types NEW J60 CHORUS! A new lush and beautiful chorus option has been added. Tap the Chorus header to switch between chorus types. HIGHER QUALITY OSCILLATORS! • 2x oversampled oscillators on iPhone and iPad • 4x oversampled oscillators on Mac NEW iPAD + MAC NAVIGATION A new middle navigation menu makes it much faster to jump between bottom panels on larger screens. Prefer the original layout? You can turn the new navigation menu off in Options. PLUS Musical Typing Keyboard added in standalone for iOS & Mac, CMD + K to show it. Play with your QWERTY keyboard iPHONE + iPAD IMPROVEMENTS • Automation now records correctly in GarageBand and similar AUv3 hosts • Fixed stuck notes that could occur when changing waveforms while MIDI notes were playing • Ableton Link upgraded to the latest version Additional fixes, polish, and improvements throughout We're getting very close to 1.0. Thank you for making music with SYNTH ONE J6 and helping us make it better.

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5

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$4.99

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User reviews

My first synth

Was a Juno 6.!
I transported it in a hardcase per bike, and it was a hard work. 😉
But so i learned to love synthesizer sounds.
So every app that is more like the original is my beloved app.
Juno was a large hardware, so i don’t want the origional. But the programming and sounds i mis.
The potis, the arp. It was great.
Thank you for a mac app version.
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Legit!!

Latest update sounds great! My only request is that you please make the LFO delay fader fade in with a slow attack like the hardware. This is one of the best parts of the synth in my opinion. Currently, the delay fader seems to delay the onset of the lfo but the onset is more like a sudden trigger where lfo goes from 0 to the set value instantly after a set amount of time.
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Good for experimenting with music

Amazing so glad there are free apps glad you have free and paid versions of stuff thank you for helping me experiment with music hope you do well

Must have

This is an excellent sounding synth and works perfectly with Logic Pro for iPad. I wish there was a Mac version too because I like to start projects on my iPad and finish them on my Mac Studio. Not a huge deal. I just bounce in place and export a wav file into Logic Pro on my Mac instead of a midi file. I’ll always have the original midi file on my iPad if I need it. Hook a midi controller up to this synth and you will be amazed. It has a lot of features and they’re all easy to access. The presets are great but you’ll really want to mess with things and make your own sounds. The sequencer is great as well. I can’t believe this is free.
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Most of your synths I’ve been on tonight 12th September 2026

So far tonight I’ve been on nerd, king of fm, j6 ,j8 , king of digital all in Cubasis 3 in auv3 only. I press on a preset then I press on another preset then it automatically moves to the first preset I picked and sometimes it jumps to a different instrument. One minute it’s a pad then jumps to an arp I just cannot keep it on one preset. These synths are awesome, I also have synth one and pro-A5, viral , king of bass which I haven’t used to see if they have the same problem or am I doing something wrong? If not pls fix
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Developer apps

FAQ

What is AudioKit Synth One J6?

AudioKit Synth One J6 is a free, professional-quality virtual analog synthesizer inspired by legendary hardware like the Juno-6 and Jupiter series. It's designed to offer expressive, vintage-style sounds with a user-friendly interface suitable for all skill levels.

What are the key features of Synth One J6?

Key features include over 400 presets, dual assignable touch pads for real-time FX manipulation, three LFOs with extensive modulation capabilities, a classic step sequencer, an arpeggiator, and a Jupiter-inspired filter. It also supports MIDI input and can be used as an AUv3 plugin.

Is AudioKit Synth One J6 free to use?

Yes, the app is completely free with no ads or subscriptions. While it's free to use, there is an option to leave a tip if you wish to support the developers.

What devices is AudioKit Synth One J6 compatible with?

The app is designed for iOS devices and can be used as a standalone instrument or as an Audio Unit (AUv3) plugin with compatible hosts like GarageBand and Logic for iPad, AUM, and Cubasis.

Who is this app best suited for?

This app is perfect for musicians of all levels, from beginners exploring sound design to experienced producers looking for a versatile and inspiring vintage-style synthesizer. It's also particularly beneficial for students and educators due to its free accessibility.