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, AfroDJMac, 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
• Space-saving Compression - The whole app is under 150mb!
• 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.
• Inter-app Audio & AudioBus 3
• 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."

Works on iPad 4 and above.

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

+ AUv3 support is coming around Jan/Feb. It will be a free upgrade. Or, you can just wait and buy it then. No rush. You're cool. We're cool. Everyone's cool with Digital D1!

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 1.0.7

Thanks everyone! We're constantly upgrading Digital D1!
* Quick Stability Fix: This update should make D1 more stable when playing with MIDI standalone.
If you're one of the people that D1 is crashing for after this update, please email us: matthew@audiokitpro.com
First try restarting your iPad. Include the preset you're using, and what you press immediately before your crash. We want to get this working for everyone.
+ Please note, that if you're using IAA, we're working on the AUv3 version every day. Which is better. And, it will be a free upgrade, of course!
+ We'll always be updating and adding cool stuff to Digital D1.

The app will just get better & better - stay tuned!
Email bugs, music, & friendly notes to: hello@audiokitpro.com
We're working hard to improve the app for you!

Stay tuned!

Ratings and Reviews

4.9 out of 5
526 Ratings
526 Ratings
Thehlkffv ,


First off I’m a musician not a sound engineer for movies or anything for that matter. With 400+ presets, and not like some lame presets that you’ll get from other apps which all sounds very similar and the only way to get that sound you’re looking for is to spend hours tweaking it. I have to give major props to the guys at D1 for putting in the works to create such high quality and beautiful sounding presets, and only if I really have to tweak anything it will be very minimal. Of course D1 has all those fancy tweaking nobs but who has time for that when you’re in that moment where you just want to lay down a quick melody or chords. D1 layouts are truly amazing, very simple to use especially for a guy who doesn’t like nobbleing around and this doesn’t overwhelms me at all. I CAN NOT WAIT till they release the AU3 compatible version of this app. Awesome work guys! Keep music alive even though it’ll never die. BTW, I hate writing reviews as much as I hate tweaking sounds but for this app I just have to.

Silk 'n Such ,

Worthy of the Best Hardware Digital/Analog Comparisons

I can say D1 has been an eye-opener as to what the iPad hardware—with the help of AudioKit’s miraculous coding— is capable of creating. This app is worth every cent, especially because it helps fund AudioKit’s freeware app, Synth One. Even if you only use a tiny aspect of the plethora of patches, waveforms, LFO’s and sequencer configurations, one afternoon with it will easily pay for itself in the nearly-limitless rich, frothy sounds the app creates. There are many iPad apps that claim to be powerhouses of electronic music. D1 actually is. And with AUv3 support coming soon (along with the already-robust MIDI and Ableton integration), it will plug directly into whichever DAW you’re using, making it a no-brainer. A true milestone. The iPad is now a professional musical instrument, as far as I’m concerned.

SuperMackMane ,

Crash crazy

I love the sounds, and the ability to creat my on presets. But when using it an app like BeatMaker 3 or Cubasis 2, it crashes often while in the middle of finding the perfect sound for my beat or even just starting a beat. It will literally be the first Instrument that I’m attempting to use and it crashes. I have 2 other apps made by this company (Synth1 & FM Player). Both also have great sounds and usability, but crash often. I thought they crashed because they were free and I haven’t donated anything, but Digital D1, I paid for and experience the same issue. Even using it in AudioBus, it sometimes doesn’t open. When I finally get it to work, it’s because I have to power off my iPad and power it back on. ThAts a vibe killer..... I want to give it 5 stars, but the crashing makes it hard to fully enjoy it.

Developer Response ,

You're wonderful. Thank you for this kind and honest feedback. We are still improving all our apps. If you'd like to be on the beta program for the AUv3 version of Digital D1, shoot us a friendly email to hello@audiokitpro.com. The upcoming AU version will hopefully work better for you in BM3 & Cubasis. For those reading, if Synth One is giving you trouble on your device, D1 might suffer from the same issues. Please be aware, and we hope to resolve all these issues soon. Thanks for your patience. And, have a wonderful week!


AudioKit Pro, LLC
266.7 MB

Requires iOS 10.3 or later. Compatible with iPad.



Age Rating
Rated 4+
© Built with AudioKit
In-App Purchases
  1. Platinum Expansion PCM EXP-01 Free
  2. D1 PCM Expansion-01 Free


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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