DRC is powerful virtual analog polyphonic synthesizer that recreates the characteristic sound of an analog synthesizer proving a minimal but powerful set of parameters, for limited but incredible sonic capabilities.

With the cloud preset sync technology, DRC enables you to sync patches across devices effortlessly. With this powerful feature, you to start the creative process on one device and continue on another, seamlessly.


- AUv3 compatible (use it on Garage Band, AUM, NS2, Cubasis, etc)
- Up to 8 voices
- Two main oscillators, one sub-oscillator and one noise source
- Detune, sync and ring modulation
- 4 pole self resonant low pass Ladder Filter
- 2 pole multi-mode filter (LP, HP, BD, NOTCH)
- 2 LFO's and 2 analog modeled envelope generators
- Stereo Tape Delay with time modulation
- Lush Stereo Reverb with modulation and self growing decay
- True stereo, analog modeled multi mode chorus
- Arpeggiator with 4 modes, tempo sync and hold function
- Sync to external MIDI clock
- MIDI clock out
- Audiobus Compatible
- Ableton Link Compatible

For detailed operation information and requirements please visit

"Elegant, easy to navigate and sounds brilliant."

"I can't enough express how amazed and happy I am playing this app. Before to write this review I read the manual (you must) and tested every parameter until understand perfectly how every one respond to the final output sound. I have to tell you the presets do not show how powerful this synth can be, you have to tweak by yourself every filter, modifier and fx's. For me the filter is the secret in this app to get a differentiated sound compared to your other synth app's. Filter add a deep texture and resolution to the sound that I forgot lfo's and adsr's.""

"One of the best iPad synthesizers!"

"This sounds better than 99% of iOS synths. Filters are awesome. Modulation options are numerous. Effects are great. Sounds like a Mac plugin, not an iOS synth. Very little out there like this. I have paid hundreds on the Mac for this kind of sound."

"A wonderful synth with it's own unique character to it."

"This app is excellent! Just enough of a twist on the standard synth app to make it worth the investment. Patch creation seems to be the focus, and UI is perfect for flipping back and forth while working out new presets. Cloud support and coming VST integration makes this synth truly a promising venture."

"Huge tone that will cut through any mix Fantastic control options for the musician Rich sounds and a beautiful visual design A developer who cares greatly about his customers and creation (frequent updates) It's alive! Recommended!"

"Easy to lose yourself in sound design. The sound sources, fx, filters and modulations are all laid out to be very easily accessible. The mixer is great for tweaking the balance between the sound sources to fine tune your sound. Can tell some love went in to making this"

"Great, rich, full-sounding sounds! Great job!!!"

"Awesome updates from a developer who truly cares about both their customers and their work. Nice job!"

"It is FAT. The interface is intuitive. It is universal."

"This is really a fine example of a synthesizer whose developers love synthesizers. It is rather difficult to explain, but there is something within not only the interface, but in the nature of the sounds that this thing produces that shows their passion. This synthesizer is a patch designer's tool, not a preset player. Yes, it does come with some nice patches which show off some of its abilities, but when you start to dig in yourself, you can create some really unusual sounds."

"Excellent job guys. The GUI looks great and everything is extremely easy to access and in a logical way. The fact that you can upload your patch to the cloud and carry on working at home is a plus also."

"Nice effects section great delay nice chord section IAA instrument support complete with transport bar and Midi learn. Good stuff."

What’s New

Version 2.4.0

- Saturation stage fix
- Stereo delay fix
- Reverb glitch fix
- General bug fixes and optimizations

Ratings and Reviews

4.5 out of 5
234 Ratings

234 Ratings

GrahamBablam ,

I get it now! (UPDATE)

Earlier I wrote a review complaining about three “issues,” specifically the advertising pop ups, noise bursts and failing to save AUv3 presets. I just really didn’t understand their business model or realize that this free version is a TRIAL. Imaginando sent me a very polite response to my review that cleared everything up. Now that I know that the free version of this app is designated as a trial, I’m pretty seriously considering buying the full version. It’s a great, beautiful synthesizer and the cloud preset function looks really great.

Thanks, Imaginando team!

Developer Response ,

Hi! Thanks for your feedback. As far as we can see, all your problems will vanish as soon as you purchase Unlock Synth Engine. The pop ups are basically the demo limitation. You are free to use the synth but you will have this pop ups limiting you. AUv3 works, but it will have the burst of noise and will not save the project state as long as Unlock Synth Engine IAP is not purchased. Therefore, all the problems you state will be easily solved by unlocking Synth Engine. Please contact us via our website if you have further questions. Best regards!

austiniodtx ,

Accidental Purchase. Decent synth but misleading.

I recently downloaded DRC and after playing with it for only a few minutes, I was prompted to pay $8.99 because apparently this “free” app is really a trial. Because my finger was rested on the home button when this happened, payment went through without me having a chance to stop it. Ugh.

I think having the ability to create sounds on the go and have them easily loadable into the desktop VST is an incredible feature, but the VST costs an extra $79! Not a fan at all of this business model, because if I really enjoyed the synth I would gladly pay more than $8.99 to get it on all platforms.

Now, the synth itself is a standard subtractive synth. There are some cool presets that show off what the synth can do, and I really like the chord keyboard function. The oscillators sound good and the effects are decent, especially the tape delay which is a lot of fun to play with.

I also own Zeeon on ios and prefer the sound of its filters and modulation options, as well as it having a sequencer. Although it was an accidental purchase I still can see myself coming back to DRC. The GUI is slick and its fun to play with, but I feel like I’m missing out on its best feature which is cross-platform patches. I already own a bunch of softsynths and hardware that I use in Ableton, so I won’t be shelling out another $79 for this anytime soon.

Developer Response ,

Hi, thanks getting in touch with your feedback, we're sorry for not delivering the best experience for you in terms of DRC in-app purchases.

We don't directly market DRC as being a free product, it is available to download for free for the purposes of trial/demo. We certainly do not seek accidental purchases, we want our users to be able to make an informed decision on whether they wish to purchase any of our products.

Ghost buster 2.0 ,

Great Synthesizer

I love music production. I’ve done it for a year now and I’ve improved a lot. I’ve used GarageBand for that time. It’s a great app for music making. Anyway ever since they added 3rd party music apps for GarageBand and the ability to use external synthesizers, my music production quality increased. This app helped me up my game with music. It’s honestly great. It has lots of tools for EQ and editing for a certain synth, and it has a variety of different synths you can use other than the default one. My only problem is that once you download it bugs you to buy the full version. If you set it for free the entire app should be free. It shouldn’t ask you later on to buy the full version. But I removed 1 star from that. And the majority of the time they don’t interrupt the overall recording of the audio, so it’s all good.

Developer Response ,

Thank you for your feedback - it is very much appreciated.


Imaginando Lda
97.3 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.

Age Rating
In-App Purchases
  1. Unlock Synth Engine $8.99
  2. Unlock Factory Expansion $2.99
  3. Unlock Sounds From Outer Space $3.99


  • Family Sharing

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

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