iPad Screenshots


Epic 64-voice Virtual Analog / PCM iPad Synth
Inspired by the Digital Synths of the 80s and 90s

100% of proceeds from this app go to support the AudioKit open-source project & AudioKit Synth One.

*** TOP 3 iOS MUSIC APPS OF 2018 *** - Music Radar Awards
(Computer Music & Future Music Magazine)

** Featured By Apple in "New Apps We Love!" **
"A Perfect Synth" - App Advice, Apps of the Week
"Fans of the D-50, JD-990, 01/W, Wavestation... Rejoice!" - Music Radar

FULLY LOADED w/ 500+ presets by Brice Beasley, Matthew Fecher, Red Sky Lullaby, Jakob Haq, Dean Daughters (Electronisounds), Sound of Izrael, Brian Funk, and more

"D1 Sounds awesome... Get this app!"
- Sonic State, Featured D1 on Podcast & Live Video Stream

• 64-voice Hybrid Digital Poly Synthesis.
• Full 1+ Gigabyte of original samples recorded from analog & fm synths over 30+ years old
• Stand-alone iPad Synth, plus IAA & Audiobus
• Basic AUv3 Plugin support. Works best with AUM. We're working on upgrading Audio Unit support.
• Space-saving Compression - The whole app is under 200mb!
• Dual layers per voice. Keyboard splits. Velocity Scaling.
• Vintage-style Arp/Step Sequencer that can be routed to specific layers.
• 3 LFOs. Fun Routings. LFOs can modify other LFOs.
• Dual Independent per-Layer filters
• Plus, per-voice Harmonic key-tracked Envelope filters.

"Digital D1 Sounds and plays AMAZING!" - The Sound Test Room
"Rad retro synth sounds" - Cult of Mac, App of the Week
"AudioKit Digital D1 is a beautiful Synthesizer app that recreates the spirit of legendary synths" - Synth Anatomy

• FX: Glorious Reverb, Phaser, Digital Delay, Distortion, Flanger, Chorus, Crush, and more.
• Perfect with a MIDI Keyboard
• Ableton Link
• All kinds of awesome stuff
• The Sound. Oh, the sound. You won't believe it.

"Digital D1 synth is pure ‘80s and ‘90s digital lushness" - Computer Music/Music Radar
"Beautiful. Lush. Modern and Amazing… An Instant Classic."

Requires newer iPads for best performance. May be slow on iPad 4.
IAA is being deprecated by Apple in iOS 13. We're moving to AUv3 as well. Please replace IAA with AUv3 in your projects.

GarageBand Audio Unit (AUv3):
You can run one instance of D1 as an AUv3 in GarageBand. With a host like AUM, you can run 3 or more instances at once.

For iPad 4 - Open the "Settings" button (to the upper left above the keyboard). Turn the buffer to 512 or above. And turn the "CPU Efficient" toggle to on. If still having trouble, try closing other music apps and/or rebooting your iPad. Thanks!

Not sure if Digital D1 will work on your device?
Download our free AudioKit Synth One app


** NOMINATED: Best iOS Music Apps of 2018 **
by Computer Music & Future Music magazine.

"The Best Synth For iOS [period]"
"I've been playing synths for 35 years. And, this is as good as it gets"
"The Sound... Perfect!"
"Breathtaking Presets, right out-of-the box"
"The sound quality competes with hardware synths"

You want great sound right away? It has tons of presets.
Plus, the ability to easily manipulate sounds with filters, delays, and other FX.

Easy to use. Easy to get great tone.

+ Mod Wheel can morph between layers. Start with an Electric Piano, and slowly bring in Strings with your MIDI controller.

+ Creative and beautiful live performances.
+ Epic pads that will inspire you

Email us your music & bugs: hello@audiokitpro.com

** This app does not sample any PCM-based synths, including Roland or Korg digital keyboards. Additionally, this app does not have any business relationship with Roland, Korg, or any other 80s/90s Digital Synth manufacturers.

*** All app sounds were created by pure analog and fm synthesis. We took these new sounds. Stacked them. Flipped them. And, processed the heck out of ’em. Resulting in a beautiful new sonic palette for you to enjoy.

What’s New

Version 1.7.1

+ Adds Support for Dark Mode (Text when saving Presets, etc)
Plus all 1.7 Updates:
• Added Inter-app Audio (IAA) & Audiobus support
• We're working on improving AUv3. In the meantime, we've added IAA & AB back.
• We also really appreciate everyone who got the new Bass 808 app. Its new code is helping us with this app.
• We've got more to go... We're working constantly to improve AudioKit apps for you.
Thanks for your support!

* We can't wait to hear the music you make with D1
* The app will just get better & better - stay tuned!

Email friendly notes to: hello@audiokitpro.com
We're working hard to improve the app for you!

Hope you all stay creative and healthy.
Please take care of yourselves and fellow musicians. <3

Stay tuned!

Ratings and Reviews

4.9 out of 5
451 Ratings

451 Ratings

Bejessu ,

I’ve got a lot of soft synths

So do I really, I mean do I really need another one, I’ve not delved deeply into many of mine and it does seem that they are all quite similar I mean how many synths do you need right? Hmmmm, well, let me tell you sunshine, if your like me, and you love synths, pads and stonking tones to inspire and enhance your ideas then well I think your one synth short.. I bought this thinking I don’t need this, And thought whhhhhyyyy as I pressed the buy it button, I’ve just had a fiddle, with my synth! Jeeeeeze some people!! Honestly, anyways it’s what I’ve been searching for. For me I’m about layers of my piano on stage, I need thickening sounds to compliment my playing, I can tweak this easily and the presets are a work of art themselves, sadly I’ve not been given a free version for this review, but I never write reviews so why would anyone.. but I am writing one now because actually they deserve it and your probably thinking the same as I did. Do I really need this synth, yes you do, and you won’t need another one. thanks guys.

demotricus ,


I’ve bought a whole heap of soft synths over the years so I’m very picky about purchasing new ones, but as I already own Audiokits DX synth and their excellent synth one synthesisers, I took the chance and bought this, and mighty glad I did too as it’s up to their usual quality. Intuitive, responsive and most importantly it sounds glorious. Very reasonable price too.
Lots of presets to play with and a good selection of FX and filters to bash em about with, you can milk some really ethereal (or raunchy if that’s your choice), sounds out of this excellent synth.
One thing worth mentioning is that you need a good late model iPad to get the best from it, no issues at all on my iPad Pro, but wont download on my (very long in the tooth) iPad mini, ( needs IOS 10.3 or above), and is a bit ‘glitchy’ let’s say, on my iPad 2. That’s the case with a lot of the better synths I own though, more than 2 or 3 notes playing at the same time and the sound breaks up.

mbt101 ,

Another classic from team Audiokit

This one takes a different approach to the normal analog emulations and goes back in time to when digital synths started appearing and captures the character very well, specifically in regard to the early Roland machines. As with all the Audiokit synths it sounds fantastic, they really know what they are doing and you can appreciate the care and attention that has gone into this. With the addition of presets by some of the best sound designers on iOS and the first class support from the team it is highly recommended.

Edit: wow 😮 so many updates already and lots of fixes and improvements. This is now my favourite synth on iOS. It sounds so **** good. Some of these patches are a track in themselves and sound so polished that they good easily be used in a film score.


AudioKit Pro, LLC
358.9 MB

Requires iOS 10.3 or later. Compatible with iPad.



Age Rating
In-App Purchases
  1. D1 PCM Expansion-01
  2. Platinum Expansion PCM EXP-01


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

More By This Developer

You May Also Like