Pure Acid is a top quality bassline synthesizer and drum machine in one app! Inspired by classic hardware bassline synthesizers and rhythm machines, which changed musical world back in 80's, like the legendary TB-303 synthesizer, TR-808 / 707 / 909 rhythm boxes and their numerous replicas, Pure Acid is designed to bring back the feeling of retro analog gear in every detail in terms of sound, as well as to provide new functions previously unavailable in the original devices to make your music creation workflow fast and fun! A large number of factory preset patterns will immerse you into an exciting world of Acid House, Techno, Hardcore and Big Beat music genres, which will inspire you to create your own basslines and rhythms for your compositions!
You can use Pure Acid app as a ready-to-go realtime musical instrument (groove box) in your jam sessions together with Ableton Link to synchronize it with the rest of your music gear. Its bassline editing system and randomization options will be handy to create unique groovy basslines easily. Realtime master effects with XY-pad controls can add expression to your live performance. You can also use Pure Acid with AudioBus, AUM or other IAA-supporting apps to create complex and interesting sound setups.
Features:
• supports AUv3, Ableton Link, AudioBus, Inter-App Audio, Core Midi, Virtual Midi In/Out, Bluetooth Midi
• AudioBus state saving support
• 64-bit sound engine
• Midi Learn
• Export to midi file
• includes Multiple Output AUv3 plugin with 6 audio output busses
Bassline Section:
• 2 classic bassline waveforms: Saw and Pulse
• classic knobs: Tune, Cutoff, Resonance, Env Mod, Decay and Accent
• Distortion effect with amount, HPF and Boost knobs
• filter LFO with rate and depth knobs
Sequencer Section:
• up to 12 bassline patterns can be stored in one preset
• up to 32 steps per each bassline pattern
• patterns can be chained together to create more complex patterns
• pattern Tempo and Swing parameters
• Gate parameter, which allows you to adjust bass note lengths
• Pattern Editor allows you to copy, transpose patterns, shift notes left/right, insert or delete a note, variate (randomize all note properties expect pitch), shuffle (randomize notes order only), reverse and compose patterns using Bassline Composer function
• onscreen keyboard allows you to enter bassline notes in a comfortable way. You can also record basslines in realtime.
Drums Section:
• 16 independent drum parts
• 35 different classic drum sounds with ability to tune your own drum kit
• each drum part sound has its own parameters: Tune, Decay, Attack/Snap/Color, FX A send, FX B send, Boost, Pan, Level
• up to 12 drum patterns and 4 drum fill patterns per preset
• 16 steps per each drum pattern, with ability to add 16 "backbeat" steps between main steps (32 steps per drum pattern in total)
• patterns can be chained together to create more complex patterns
• Swing and Flam features
• Total Accent part with adjustable total accent value can give you ability to "highlight" specific steps in your drum pattern
• new: step conditions for drum steps
Mixer Section:
• 2 mixer channels: Bassline and Drums
• Drive effect for each channel
• 2 send effect pedals: FX A and FX B
• 14 send effect types
• send effect can be routed to either master output, MFX or another send effect (FX A -> FX B), which allows to chain several effects one after another
• MFX pedal with 22 effect types to choose from
• FX A and FX B send amount knobs for each mixer channel
• XY-pad on each effect pedal to control their parameters
• Master Limiter effect to prevent sound clipping
and more:
• Unlimited number of user presets
• 84 factory presets
• Audio export to wav file (16, 24 or 32 bit)
• Preset / Bank Share function
• Selectable UI color schemes with ability to adjust colors manually
• Can work either as a standalone app, or as AUv3 audio unit plugin
• Designed for both iPad and iPhone
It’s taken me a couple of attempts to get the hang of this app and get it properly synced and stay in time with Ableton. But I finally worked it out and it is wonderful! For my setup, the trick was to use track delay settings in Ableton on the audio track that the iPad is feeding into by -35ms and that seemed to line up the acid bass with my Ableton project pretty tight. Before that it was miles out of sync and sounded rubbish. The real magic for me in this app is being able to set your key of your track and hit the generator button to generate new patterns. I cannot stand dialling in patterns on my hardware 303 synth and this solves that problem beautifully. Well done to the person that made this app. I’m going to be selling my hardware now as this is so much easier at just getting the job done.
Simply Stellar
Rick Evertsz
I’m a Rebirth user from 25 years ago. Moved away from electronica, but have returned recently. I looked at many 303 apps on Mac, but none matched my memory of Rebirth (Phoscyon2 is pretty good though, but 10x the price of Pure Acid). Superb UI, great sounds, nice presets to jump start things. No annoying subscriptions, which I rarely acquiesce to. Great price. Just get it! Oh, and as always, Slava Ukraini! Since the war began, I’ve discovered that many of my favourite apps are written by Ukrainians. Hope to visit one day, once they kick the Orcs out.
Awesome, but please allow for Mac M1
Conzza
Jim, I love this app. I recently bought a Mac Studio and was disappointed to see that none of your app’s apart from Poison run on M1/2. Please allow these to run natively considering the chipset is the same now. Much love and hope all is ok in the Ukraine.
Just wow
owowowowlittle
Great little sketchpad. I find myself starting tracks on this and then transcribing them to my tr8 and 303 shortly after. Won't be surprised if I do a whole track just in the app!
In the standalone app:
- improved compatibility with new iPad display resolutions and aspect ratios. Now the app's interface adjusts to any screen size automatically;
- implemented portrait orientation mode support (for iPad) to comply with the new iPadOS 26 requirements. In the portrait mode, all 4 module racks are visible simultaneously on the screen together with the onscreen keyboard;
- graphics refresh rate increased to 120 FPS (where available);
- minor bug fixes.
Version 1.5.6
The developer, Dmitrij Pavlov, 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
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
