DRC - Polyphonic Synthesizer 4+

AUv3 plugin included

Imaginando Lda

    • 4.7 • 594 Ratings
    • Free
    • Offers In-App Purchases



Save 30% on all in-app purchases until 31st December 2023

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 www.imaginando.pt/products/drc

"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 2.9.4

- Fixes crashes when AUv3 is used with Logic

Ratings and Reviews

4.7 out of 5
594 Ratings

594 Ratings

anickt ,

It's Great UPDATE

It’s still awesome in spite of the pandemic! 😁 What are you waiting for? Just get it!!

Don't believe the negative reviews. Anyone with a reasonable amount of experience with synths would know how awesome DRC is. The trial period is fair. I wish others did the same. It's got a lot going for it, sounds great and is very flexible. If you can't afford $15 or whatever it costs these days don't buy it. I found it's well worth it and if other synths had a trial period like this I probably would have purchased fewer of them. This one’s a definite keeper.

Developer Response ,

Thanks for this incredible review. 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.

Augurybot ,

Dark UI - borderline scam app

Pretty Cool sounds, really strong synth for an iPhone and iPad app…. Even though i paid for a bunch of the upgraded features quite some time ago - and spending $30-45 or more… it isn’t worth ever using. Dark UI scams you out of your money. Not worth it. How you ask?

Every time this app automatically offloads to save hard drive space it will not remember your purchases. There is no “restore purchases” option.

Clever girl! (Picturing that scene from Jurassic Park when the raptor learns to use the door handle)… because after a few minutes, upon downloading and using it again, it will ask if you would like to purchase an upgrade to continue using. Again there is no restore purchases option. There are many features for purchase on this app and so….

If you have purchased, and agree to buying again… it will restore your purchases at no cost.

If you don’t remember if you’ve purchased a feature or not, and you have not…. It will charge you for something you weren’t sure you already owned.

After a couple of years of trying to use this synth, and having been charged a couple of times for things that I didn’t really want…. it can safely be assumed this “faulty” UI is undoubtedly on purpose. Come on, it’s been YEARS.

Don’t download this garbage, there’s much better options out there for both your ears and your wallet.


Developer Response ,

Hello. I'm afraid to tell you but your are being extremely unfair with us. You can find the 'Restore Purchases' button under Menu -> Store > 'Restore Purchases'. I hope you can update this review. Best regards

App Privacy

The developer, Imaginando Lda, 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


  • Family Sharing

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

More By This Developer

LK - for Ableton Live & Midi
DLYM - Delay Modulator
TKFX - Traktor Dj Controller
K7D - Tape Delay
FRMS - Granular Synthesizer
VS – Visual Synthesizer

You Might Also Like

Factory - Modular Synthesizer
King of FM: DX Synth/E Piano
Viking Synth
BLEASS Monolit