Lagrange - AUv3 Plug-in Synth 4+

Hybrid Synthesizer

iceWorks, Inc.

Designed for iPad

    • 4.8 • 57 Ratings
    • $9.99



Free update installable on Apple Silicon Mac
If you have already purchased this App on your iOS device, you can install it on your Apple Silicon Mac for free.

Lagrange is an AUv3-compatible synthesizer that makes sound creation easier by hiding complex parameter adjustments behind oscillator algorithms.

# Universal App
This product is compatible with iPad, iPhone, and Apple Silicon Mac.
Please note that it is not compatible with Macs with Intel CPUs.

# Audio Unit Extensions (AUv3)
This product supports only AUv3 plug-in format. You can use this AUv3 Plug-In in a host application that supports AUv3.

# Notes
- Note that depending on the parameter settings, loud sound may be produced.
- This product can be installed on iPad, iPhone, and Mac computers with Apple silicon (M1, M2). It is an iPad and iPhone app that can run on Mac computers with Apple silicon. It cannot be installed on Mac computers with Intel CPUs.
- This product supports only AUv3 plug-in format. Other plug-in formats are not supported. It can be used with AUv3-compatible DAWs.
- This product is not suitable for the purpose of accurately reproducing the sound of acoustic instruments or other synthesizers. It has been developed with a focus on creating the sound of this synthesizer itself.
- This product does not support MPE (MIDI Polyphonic Expression).
- Because the details of sound creation are hidden within the oscillator algorithm, fine-tuning the sound is more limited than on other iceGear synthesizers, resulting in less sound variation. This is a result of the emphasis on the simplicity of simply selecting an oscillator algorithm, rather than adjusting a number of knobs to find a sound from a vast array of possibilities.
- This product mainly contains basic presets that are useful as a starting point for sound creation. Please note that there are no huge amount of presets. Enjoy making sounds.

# More information
More information, videos and manuals are available at:

What’s New

Version 1.3.1

- Improved live automation recording to AUv3 Host app.
- Other small fixes and improvements.

Ratings and Reviews

4.8 out of 5
57 Ratings

57 Ratings

Strizbiz ,

Great synth, but if I may….

This synth is fantastic, I love a synth with a lot of oscillator types, this is my favorite synths from this developer ( I do wish Cassini was still supported and given the auv3 treatment but that’s another story ) the routing is great and adds more depth to the presets, which is the weak link. While I prefer programming my own presets, there are others who may not and 30 presets is simply not enough. Although the routing options gives presets more sonics , it still needs to include a lot more presets for people who might not enjoy coming up with their own presets like some of us do. Id say at least 128 if not 250 presets and a more robust browser would be great….or, and Id like to see this more than more presets, a Randomizer button. That would really be awesome, where you can set a percentage of up to 100% of the parameters to be randomized. Or even sell presets expansions via iap. Again, no complaints about the synths and personally I’m ok with making my own sounds, it’s really fun but I’m thinking of others who just want to spend time picking sounds over programming. Anyway that’s my 2 cents.

GadgetMojo ,

This synth instantly became one of my top faves! 🥇

I’ll keep it brief and just list the things I love about it:

* Great sound quality and possibilities, very unique sound - unlike any other synth I got. It’s got very organic type of sound that’s very suitable for playing with both hands. Great for pads/ambient sounds as well.

* Very intuitive and pleasant to use UI. All of the controls are easily accessible without going into different pages. (There are 2 of each: OSCs, ENVs and LFOs) I like that as you change the routing possibilities, you can play the onscreen keyboard without it closing. And there are a lot of other little things like that, just feels like a lot of thought and love went into development of this synth.

* Patches are stored alphabetically and you can create your own folders. There’s Save and Save As, so you can create patches quickly, and never worry about getting lost.

* Microtonal tuning allows to tune each note individually! I just tried it briefly, but it’s got so much potential for going one step beyond creating unique sound - a completely unique instrument! Look forward to exploring this further.

I usually list a couple of suggestions in my reviews, but I just don’t have any for this synth... it’s just perfect!

This is the only app I got from this dev so far, but I’m sure I’ll be getting more soon. Thanks for creating this gem!

Dvelop ,

Worth it !

I had held off on buying an IceGear synth until this one due to having so many music apps. I did almost buy the Laplace synth before this though as it met a synthesis need I didn’t really have on iOS. (Resonator) but Lagrange seems to cover this and most other needs. It sounds great. Recommended if you are trying to have every type of synthesis and new possibilities. Thanks for the work IceGear!!

App Privacy

The developer, iceWorks, Inc., 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

    Up to six family members can use this app with Family Sharing enabled.

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