J6 is Amazing & FREE! Have fun :) EVERYTHING INCLUDED, NO Ads or Subscriptions!
SYNTH ONE J6 (Inspired by Juno-6 & Jupiter series*)
Trusted by over 250,000 iPhone & iPad musicians, Synth One J6 is now on Mac too!
Pro Quality. Actually Cool. And Yes, Totally Free.
Synth One J6 delivers lush pads, deep basses, classic keys, and vibrant leads that feel truly alive.
No ads. No subscriptions. No in-app purchases (unless you want to leave a tip).
CREATED BY VOLUNTEERS
Musicians, Educators, and Sound Designers over 4 years. Synth One J6 is used in Schools and Higher Education institutions across the world.
Just pure, expressive sound designed for creators of every level.
EASY TO USE
The interface is intuitive and welcoming. Each function has a dedicated slider or knob.
Simple for beginners and deep enough for pros.
WHAT MAKES IT DIFFERENT?
Major accessibility improvements and Voice Over have been added throughout the app to make Synth One J6 a much more enjoyable instrument for blind and visually impaired musicians.
LEARN THE EXCITING STORY:
audiokitpro.com/synthonej6
Inspired by legendary synths like the Juno, Jupiter, and DeepMind series. It's not a clone. It's a new classic: built from the ground up with a custom, non-vibe coded sound engine. You’ll hear the warmth, the punch, the vibe.
INSTANT INSPIRATION
With over 400+ presets, a classic step sequencer, dual arpeggiators, analog-style filters, tape delay, reverb, chorus, 3 LFOs, and real-time FX control, your creativity will never hit a wall.
FEATURES:
∙ 400+ Presets and Features Included,
∙ Pro Version Included, Nothing to Buy!
∙ Microtonality and World Scales
∙ Accessibility and Voice over for the Blind and Hearing Impaired
∙ Lush, Expressive Vintage Synthesizer Sound
∙ FX: Glorious Reverb, Analog Tape Delay, Chorus, Crush, and more.
∙ 3 LFOs, over 60+ possible destinations, almost everything can be modulated! LFOs can even modify other LFOs
∙ Control it with a MIDI Keyboard, MIDI Learn to map your controls to the app
∙ Classic Arpeggiator & Vintage-style Step Sequencer, with extra features
∙ Dual Assignable Touch Pads, manipulate FX in real time!
∙ Preset Sync between iPhone, iPad & Mac! Create a sound on one device and continue working with it on another.
∙ Created by volunteers to support music education and access for all
PLUGIN ON iOS and MAC:
∙ iOS: Works as a Plug-in Instrument in GarageBand and Logic for iPad, AUM, Cubasis, and MORE!
∙ Mac: Tested in Ableton, GarageBand, Logic, and more!
WORKS BY ITSELF
∙ “RECORD” button: Easily record your synth and sound fx, then export wav fileNo other apps needed!
PERFECT FOR CLASSROOMS AND... STUDIOS
Synth One J6 was built for musicians of all levels, with an interface that is intuitive for beginners and deep enough for pros. Especially great for schools and students who may not have access to paid apps.
BUILT BY MUSICIANS, SHARED WITH THE WORLD
MADE FOR MUSIC. MADE FOR EVERYONE.
Music should be for everyone. That is why Synth One J6 is truly free. No fees.
Please help us share it. Tell a teacher. Tell a student. Tell anyone who’s dreamed of experiencing a vintage synthesizer but lacked the opportunity.
Because music belongs to everyone.
* LEGAL NOTICES
This app has no affiliation or endorsement from Roland Corporation. It is not a clone of the Juno-6, Juno-60, Juno-106, Jupiter-8, or any other synthesizer. While we were inspired by the sound and legacy of these iconic instruments, this is an original creation, built from the ground up.
All product names, trademarks, and images mentioned are the property of their respective owners and are used only to describe the inspiration behind this app and for purposes of reference. Their inclusion does not imply any association, affiliation, or endorsement.
This project is free and was created solely to promote music creation and education.
We sincerely respect the incredible work of Roland and other manufacturers in shaping music history.
Thanks so much for making this free. This is the best app you ever made. I was surprised with how much detail this includes. For a while, I stopped using software synths and tried to create my own hardware synth sounds in the korg minilogue. I love that I can plug my guitar into it to get the filter, lfo and delay effects. I wish I had a AudioKitSynth One J6 HARDWARE synth that I can plug my guitar into to use the effects as well. It would probably be so expensive though. Even though this is software, all the textures and many layers of this synth gives strong illusions of that hardware feel.Well done on this masterpiece app.My only request is if you can add a feature while changing the tuning from 440. Please allow 2 decimal values. I used to play 432 tuning because it’s like a rounded off earth frequency, but I now play a tuning that’s tuned exactly to earth and it gives a calming sensation. And if you add this feature, please also allow typing in the value. Other apps that allow tuning with 2 decimal numbers mostly only has a knob to adjust the tuning that doesn’t allow the exact value I need. I can use another app to pitch it close to where I need it, but that creates lag when I play.
Truly, Truly Unbelievable!
Music for the living
Its very rare that i write a review these days with the zeitgeist seemingly bombarding us with discontent at every turn, but — this synth motivates me. I cannot believe that this is free! In my personal opinion, this provides a warmer, fuller version of the real analog synth sound than any other i’ve heard yet and i’ve been buying ios synthesizers for about 15 years. Beautiful effects contribute to the sound for sure but remove all the effects and it still sounds smooth, lush and warm. I am primarily a guitar player and this synth truly feels like the tone of a singing yet biting tube amp. The kind people pay big money for. Sometimes a developer, due to who knows what factors, comes up with something exceptional beyond words and this synth in my opinion is one of those instances. I don’t know how much better software synth can sound because this really does sound like the intended original. Well done Audiokit! And better than well done for making this piece of technical art free. That, in our age of selfishness is almost as great a thing as the sound itself. Thank you devs.
Unfair
MacBezzy
It’s always the great ones that know how to function in society properly. What am I speaking about? Principles, character, good folk. The fact this is free is criminal. Do what they ask and leave a honest review. It’s crazy, cause I know that’s what they want. They don’t want you to say you like it if you don’t. What they do want is a balanced critique. So if you do not like it say why. Anyway the sound quality is bonkers. And not just like for an app. No the sound quality is ridiculous. Hook up a decent midi to this and it’s your fault if you can’t get something properly done. Ok that’s it. I only poke my head out of my cave to leave these kind of things when I’m emotionally moved. I didn’t even mention the free stuff in addition to. Seriously you (synth one) should ask for something. Seriously.
This app Is so close to perfect, but…
Aaaaaalalalaaalaalalala
I think that, if an app were to have full support with their previous versions, it would have to have all the previous effects present from those versions. What I’m trying to say is that there are 2 things missing from this version and the synth one; FM synthesys, and distortion. For the first one, all you would need to do is be able to rewire an oscilator to modulate like an lfo in a small drop-down menu. (Or independent fm knobs would be nice too). For the second one, any classic 80’s distortion would work wonderously (saturation would be nice to thicken sounds). Also (last thing), I know that these are all likely unsupported with the original J6, but they would help to move people over from synth one into the new app. I know it takes a lot to add features like this, but it would go a long, long way in improving this app, and user’s experience with them.
Thanks everyone! Quick fixes to improve background battery usage and other improvements
Version 0.999.7
The developer, AudioKit Pro, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More