# Elastic OSC — AUv3 Synth with different OSCs

> Versatile AUv3 synthesizer app with 24 oscillator models and extensive modulation. (iPhone/iPad app by Oliver Greschke (DE).)

- Source: https://appshunter.io/ios/app/elastic-osc/id6478936836 (this page in markdown: same URL + `.md`)
- Developer: [Oliver Greschke (DE)](https://appshunter.io/developer/505848000)
- Category: Music
- Price: $17.99 with in-app purchases
- Rating: 4.70/5 from 35 App Store ratings · 20 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 58 MB
- Released: 2025-05-04
- Data updated: 2026-09-05
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/elastic-osc/id6478936836/reviews.md

## What is Elastic OSC?

Elastic OSC is a synthesizer app based on the DSP code of the Mutable Instruments Plaits hardware oscillator module, one of the most beloved (and cloned) oscillator modules in the Eurorack modular scene! Like the original, Elastic OSC comes with a wide variety of possible sounds, from analog-style, FM, and additive sounds to physical modeling, percussive, and even drum sounds. 

Elastic OSC can be used in both monophonic and 8-voice polyphonic modes. You can play the app using the (on-screen) keyboard or an external keyboard or sequencer inside your DAW of choice.

The app focuses on ease of use, featuring two XY pads for intuitive sound manipulation of the OSC engine and the effects. Despite the simplicity of the cleaned-up interface, the sound possibilities are vast – thanks to 24 different oscillator models and the ability to automate parameter changes, as it is possible in all Elastic apps released so far.

A versatile Arpeggiator makes it easy to start with simple ideas or can already create entire sonic worlds.

Elastic OSC includes an integrated help system (tap “?”) to provide explanations for nearly every GUI element, the underlying DSP model, and most of the app’s functionality.

CDM: "Elastic OSC becomes a must on iOS. It’s fun to use as an instrument in your iPad DAW of choice."
SYNTH ANATOMY: "Takes the Mutable Instruments (Plaits) algorithms on a wild trip. A nearly perfect app."
ROBERT LIPPOK: "Elastic OSC is incredibly fun to work with from the very first minute. The GUI is really well thought out and has 24 integrated synthesis models, as well as the ability to load DX7 sound banks. Omg, so good."

--- FEATURES ---

SYNTHESIZER
– 24 different Sound Engines from MI Plaits DSP code
– 4 main parameters per synth engine (Frequency, Harmonics, Morph, Harmo)
– Recordable Modulations/Automations for almost all Parameters with a length of 1, 2 or 4 beats.
– ADSR Envelope for Amplifier
– LPG Envelope for Modulations of Timbre, FM, Harmonics
– Adjustable Velocity effect on Volume and/or LPG Modulation
– DX7 Bank and Wavetable Import

ARPEGGIATOR
With different Arp Modes, Rates, Octave Ranges and Skip Notes functionality

MASTER FX
– 5 effects (5 different Overdrive/Distortions, Hi-Low-Filter, Chorus/Flanger, Delay, Reverb)
– Automations for all effects parameters
– Master Gain and switchable Limiter effect

SYNTH ENGINES
- Virtual Analog
- Waveshaping 
- 2 OP FM
- Granular Formant
- Additive
- Wavetable 
- Chords 
- Speech
- Granular Cloud
- Filtered Noise
- Particle Noise
- String Model
- Modal Resonator
- Bass Drum
- Snare Drum
- Hi-Hat
- Virt. Analog VCF
- Phase Distortion
- 6 OP FM 1
- 6 OP FM 2
- 6 OP FM 3
- Wave Terrain
- String Machine
- Chiptune

——————

LFOs
LFO 1 is for free, while three additional LFOs can be unlocked via In-App Purchase.

LFO MODULATION TARGETS
 • Frequency Amount
 • Timbre Amount
 • Morph Amount
 • Harmonics Amount
 • Filter Amount
 • Pan Amount

LFO MIX
The MIX view enables you to blend multiple LFOs and define how strongly each active LFO influences a target parameter.
The closer a target is placed to an LFO corner, the stronger its influence.
All active LFOs always sum up to 100% (e.g. LFO1 50%, LFO2 30%, LFO3 20%).

## Key features

- 24 distinct sound engines based on Plaits DSP
- Intuitive XY pads for sound manipulation
- Versatile arpeggiator with multiple modes
- Integrated help system for all features
- DX7 bank and wavetable import
- 5 master effects with automations

## Pricing and in-app purchases

Base price: $17.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Unlock MPE for expressive control | $4.99 | one-time |
| Multi LFOs | $3.99 | one-time |


## Recent user reviews (10 of 20)

All indexed reviews: https://appshunter.io/ios/app/elastic-osc/id6478936836/reviews.md

### 4/5 — Great synth

*2026-06-03, version 2.0*

Love this synth! 👍

### 5/5 — Absolutely phenomenal

*2026-05-27*

This is a must-have synth for any musician or sound designer looking to expand their sonic range. Great sounds and endless possibilities.

**Developer response:** AU and VST3 versions of the app are planned to get released before summer :)

### 5/5 — Brauchbar und wird gepflegt

*2026-04-30*

Nach anfänglicher Skepsis bin ich nach einem zweiten Anlauf doch sehr zufrieden mit dem Teil bringt neuen Schwung in mein Setup.

**Developer response:** Das freu mich zu hören !  Es wird noch viel Neues kommen :)

### 5/5 — MicroFreak Killer

*2026-03-29*

With the new MPE modulation this brings all the power of Arturias MicroFreak in the palm of my hands and more at a fraction of the cost. I had requested this feature on a YouTube comment and am ecstatic to see it updated. 
No hesitation buy this synth and the MPE upgrade.

**Developer response:** Thank you, that's great to hear :) 
Yeah MPE is a great new perform feature, had to get convinced myself first, tbh.

### 5/5 — Super Fantastic! HIGHLY Enjoyable Synth!

*2026-03-26*

Elastic OSC is one of my favs. It is intuitive. Very customizable. So, so enjoyable to play. ty!

### 5/5 — Some much fun

*2026-03-08*

I am enjoying coming up with wild sounds

### 5/5 — Please bring this amazing synth to macOS!

*2026-02-05*

That’s it. 😀

**Developer response:** AU and VST3 versions of the app are planned to get released before summer :)

### 5/5 — Extraordinary

*2025-12-21, version 1.2.2*

Unbelievably good! OSC is my favourite synth of all time (I’m including hardware and I’ve got and used a lot) my mate rocked up with £4500 worth of eurorack with real mutable instruments modules and left with his tail between his legs. This was before they added 4 lfo’s ,one note can become a tune in of itself. Achingly beautiful to downright monstrous digital bliss it really is a thing of joy. Nuff said

### 5/5 — Really Incredible

*2025-12-08, version 1.1.1*

This synth has some many sounds and things to do to the sounds, you could really get by with this being the only synth you have if you needed to. So many options, high quality and it especially lends itself to live performance.

### 5/5 — Interesting and fun

*2025-11-02, version 1.1.1*

One of those synths that it’s easy and immediate to get interesting results. I’m lazy and I leaning more and more to synths like this that make getting results easy and fun

## Frequently asked questions about Elastic OSC

### What kind of sounds can Elastic OSC create?

Elastic OSC can generate a wide variety of sounds, including analog-style, FM, additive, physical modeling, percussive, and drum sounds, thanks to its 24 distinct oscillator models.

### Can Elastic OSC be used with other music apps?

Yes, Elastic OSC can be used as an AUv3 plugin within your DAW of choice on iOS, allowing for seamless integration into your music production workflow.

### How does Elastic OSC handle polyphony?

Elastic OSC supports both monophonic and 8-voice polyphonic modes, allowing you to play chords or layered sounds.

### Does Elastic OSC have ads?

No, Elastic OSC does not contain advertisements, providing an uninterrupted creative experience.

### What is the price of Elastic OSC?

Elastic OSC is available for a one-time purchase of $9.99.

### How often is Elastic OSC updated?

The app was last updated on April 8, 2026, indicating active development and support.

### What devices is Elastic OSC compatible with?

Elastic OSC is compatible with iPhone, iPad, and iPod touch devices.

### What is the age rating for Elastic OSC?

Elastic OSC has an age rating of 4+, making it suitable for a wide range of users.

## Version history (last 5 releases)

### 2.1 — 2026-07-03

- Completely redesigned Presets section, including tags, artist names, synthesis engines, search, and sorting options
- New presets by Andrea Cichecki
- Added Mono and Stereo Portamento modes with two styles: Legato and Always
- Added new Mod Wheel assignment options:
    a) Mod Wheel controls the Wet amount of recorded automations (previous behavior)
    b) Mod Wheel controls the Wet amount of LFO modulations
    c) Mod Wheel controls the Wet amount of both recorded automations and LFO modulations
- Improvement: Import multiple presets at once instead of one by one
- Improvement: No clicks & artefacts when switching presets
- Improvement: Presets Loudness has been aligned

### 2.0 — 2026-05-27

- New Presets by Arovane
- New Presets by Peter Kirn
- New Presets by Robert Lippok
- Additional MPE presets by SOi 
 
- Delete Automation: A) Last Automation B) All automations
- Presets: Added Like function 
- Improved Arp / Hold functionality and Timing
- Engines Overview with Longtap
- Added Pedal Hold function

### 1.3.1 — 2026-04-08

- MIDI program changes will switch user presets
- Additional MPE Presets 
- Help texts for MPE parameters
- Performance improvements

### 1.3 — 2026-03-26

Elastic OSC 1.3 adds the long-awaited MPE support.
Unlock expressive control and shape sounds with polyphonic aftertouch and per-note gestures.
Map Glide (X), Slide (Y) and Pressure (Z) to selected synthesis parameters and control them with external MPE controllers or the built-in keyboard (X and Y). As with any MPE instrument, all gestures work polyphonically, meaning each note can control parameters independently — for example different gains or timbres depending on the pressure applied to each key. 

MPE support is available as in-app purchase.
You can already play and test the included MPE presets that come with this update (by artists like Red Sky Lullaby, Nerk, and others).
However, editing MPE mappings is only available after purchasing the feature, allowing you to save them as part of your presets.
A Lock button lets you keep your current MPE setup while loading other presets — so you can explore sounds without losing your preferred MPE mapping.

3 MPE MODULATION SOURCES
 • Glide(X) also called Pitchbend
 • Slide (Y) also called Timbre (CC #74)
 • Pressure (Y) also called Aftertouch


8 MPE MODULATION TARGETS
Can be mapped bi-polarly to control:
 • Frequency Amount
 • Timbre Amount
 • Morph Amount
 • Harmonics Amount
 • Engine Amount
 • Filter Amount
 • LFO1 Amount
 • Gain Amount

——————

OTHER CHANGES:
- MPE presets by Red Sky Lullaby (20), Nerk (25), ToYaGa (7) and others
- New presets by Jakob Haq (76!) featuring automation and LFOs
- Improved BPM knob sensitivity
- FX navigation: swapped filter and distortion order to better reflect the actual signal path
- Various tweaks and improvements

### 1.2.5 — 2026-02-03

- iPhone improvement: knobs now respond to both vertical and horizontal movements
- New presets by Dasero

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## More apps by Oliver Greschke (DE)

- [Elastic Drums](https://appshunter.io/ios/app/elastic-drums/id817419955)
- [Elastic FX](https://appshunter.io/ios/app/elastic-fx/id1041878154)
- [MolliLooper](https://appshunter.io/ios/app/mollilooper/id1622063262)
- [Elastic Melody](https://appshunter.io/ios/app/elastic-melody/id6444045350)

All apps by Oliver Greschke (DE): https://appshunter.io/developer/505848000

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-05.*