The Macro Synth: Playful Macro Synthesizer for Mac / PC, iOS & Android — 24 oscillator models, 8-voice polyphony, built on Mutable Instruments Plaits DSP.

Elastic OSC Desktop version

Create on mobile.
Continue on desktop.

Elastic OSC is now available across all major platforms: macOS, Windows, iOS and Android. Design sounds anywhere — on your phone or tablet — then continue shaping them in your desktop workflow. One synth, every device.

An 8-voice polyphonic macro-oscillator based on Mutable Instruments Plaits, reduced to just four core parameters across all 24 oscillator models.

The four core parameters map to an expressive XY pad for fast, intuitive sound exploration. A second XY pad gives direct control over the built-in effects — immediate, playful, and fun.

The desktop version works as a plugin on Mac(AU/VST3) and PC(VST3). Tested in Ableton Live, Bitwig, Reaper, Cubase, FL Studio, and Logic Pro. MPE support and multiple LFOs are already included for free in the Desktop version.

A versatile Arpeggiator and full parameter automation make it easy to build entire sonic worlds.

€ 39

AU / VST3 · MPE & LFOs included
macOS 10.14+ · Windows 10+

€ 14.99

MPE & LFOs as in-app purchases

€ 9.99

Intro Price

MPE & LFOs as in-app purchases

Intro & Demo.

Desktop Release Video

What people say.


Everything under the hood.

  • 24 Different Sound Engines (MI Plaits DSP)
  • 4 Main parameters per engine (Freq, Harmonics, Morph, Timbre)
  • Recordable Modulations/Automations (1, 2, or 4 beats)
  • ADSR Envelope for Amplifier
  • LPG Envelope for Timbre, FM, Harmonics modulation
  • 8-voice polyphonic mode
  • Adjustable Velocity effect on Volume and/or LPG Modulation
  • DX7 sound bank support

  • Multiple Arpeggiator Modes
  • 4 Main parameters per engine (Freq, Harmonics, Morph, Timbre)
  • Adjustable Rates and Octave Ranges

  • 5 Overdrive/Distortion modes
  • Hi-Low Filter
  • Chorus / Flanger
  • Delay and Reverb
  • Automations for all FX parameters
  • Master Gain + switchable Limiter

  • MPE with polyphonic aftertouch (free on Desktop)
  • Desktop: Standalone + AU + VST3
  • Tested in Ableton, Bitwig, Reaper, Cubase, FL Studio, Logic Pro
  • Mobile: AUv3 plugin (AUM, Cubasis, Logic)
  • External MIDI keyboard / sequencer support
  • 600+ Presets from pro sound designers
  • MPE Lock button — preserve mapping while browsing presets

MPE — Free on Desktop, IAP on Mobile

MPE is included for free in the Desktop standalone version. On iOS and Android it’s available as an in-app purchase. Map Glide (X), Slide (Y), and Pressure (Z) to synthesis parameters — all gestures work polyphonically, each note shaping parameters independently.

Map Glide (X), Slide (Y), and Pressure (Z) to synthesis parameters — control them with external MPE controllers or the built-in keyboard. All gestures work polyphonically: each note controls parameters independently.


Best Synth 2025

Elastic OSC (iOS) made it into several Best of 2025 lists from leading music technology publications.

Feedback

Questions, feedback, press inquiries — just drop us a line.

    Team / Legal

    Development:
    Oliver Greschke, Baptiste Le Goff, Lucie Gosset, Fredrik Wallberg, Valentin Ackva

    Design
    Gösta Wellmer

    DSP
    Engine sounds are derived from the open-source code of the Mutable Instruments PLAITS Eurorack module. Immense thanks to Émilie Gillet for generously sharing this beautifully crafted DSP code!


    Portions of this software are derived from Mutable Instruments PLAITS,
    © 2016 Émilie Gillet – licensed under the MIT License.

    Get notified on new releases.

    Updates on new versions, desktop release, and other Elastic Instruments apps.

    No spam. Unsubscribe anytime.