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GSDSP MMM

GSDSP MMM

Magic Midi Modulation!

36 ratings
6 reviews
🎵 Music
Free

Details

Released
April 27, 2023
Updated
October 23, 2026

Features

Developer

Gustav Scholda
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About

This app offers a robust MIDI modulation engine for controlling various instruments and plugins. It allows users to create dynamic audio with LFOs, random sources, and more, featuring a performance-focused interface for live use.

✓MIDI CC control for plugins and hardware
✓LFOs, random sources, and envelope followers
✓Audio-based modulation capabilities
✓Dedicated Performance Skin for live use
✓AUv3 audio effect plugin
✓Desktop versions for Windows and macOS
Show original description
+1

What's New in GSDSP MMM

2026.5

October 23, 2026

- Improved: Optimized CPU and memory usage

User reviews

Most RecentHighest RatedLowest Rated

Make MIDI controller useful

I was busy trying to figure out how to use this MIDI controller for my music creation for a while until I give up because this thing does not work after fiddling around with dials and stuff. Do I need a physical MIDI controller for this thing to work or not? If so then I’m going to boycott this app for good reason.
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PPopa301

Response from developer

Hi, You don‘t need a physical MIDI controller at all. We have a whole section on our website with user manuals and tutorial videos here: https://gs-dsp.com/learn/ Also you should be familiar with handling MIDI in your DAW. Please reconsider your 1-star review… There really is no reason to boycott this (free) app. You don‘t need any hardware, just watch the tutorial and/or read the manual. Once you know how to use it, it should be straightforward. Kind regards, Gustav

Pitch to midi, FTW!

I came to MMM after searching for a pitch to midi AUv3 app to replace the now-defunct A2M. MMM is great, and does mostly what I needed in terms of converting incoming audio’s pitch into usable midi control data. The different spectral modes are super interesting, as well, as is the simple envelope follower.

The only thing I’m left wishing for is the ability to send out higher bitrate modulation, like pitch bend, NRPN, or 14-bit CC. It’d also be nice to be able to send midi note data based on detected pitch, rather than simple 7-bit CC — or even midi note plus pitch bend offset, which would allow one to trigger synth or sampler apps from MMM. Lots of possibilities, and it’d be amazing if the dev continued to add options. I’d be happy to pay, if it meant more dev attention and additional features.

Anyways, big thanks to the dev for the amazing freebie! Love their other apps as well. Amazingly useful and GREAT sounding.
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SScottCG

Response from developer

Thank you for the kind words, really glad you enjoy it! Your request for sending more kind of MIDI messages totally makes sense, I‘ve added it to our list ;) Cheers, Gustav

Powerful

But you need to know how to use it! There are tutorials on YouTube. Disregard negative reviews.
Aanickt

Looked useful, but..l

As the title says, this looked like a well featured and useful app. However, about three or four updates ago, the app refuses to do anything but open a black screen on my iPad Air 2. I realize that this has been a free download and I have an older device, so I don’t want to sound unreasonable and ungrateful. I rated the app fairly highly for what it used to do. If updates have moved on without me, I can accept that for something that I did not pay for. I am writing this comment just because I thought that you might not know what is happening.
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BBendKeys

Response from developer

Thanks for the feedback. Please contact us via our website to report the details of issues. We take all reports seriously and work hard to make quality software.

Amazing offering, ignore immature reviewers who don’t understand how to use it

This is a true gift from devs who offered it free. It’s pretty immature and entitled for someone to rate low simply because they are not at a level of experience or skill in using an alp that controls MIDI. That type of thing will only influence devs to not offer freebies because then someone downloads and hasn’t taken the time to understand if the app is right for them or their skill level and it’s easy enough to watch YouTube videos to learn more. Thanks to the devs for offering this and making some of the most unique apps in the store,
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Hhyperfocusmusic

Response from developer

Thank you for the very kind words! We hope this brings you many many hours of creative fun.

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FAQ

What is GSDSP MMM?

GSDSP MMM is a powerful MIDI modulation engine that allows you to control parameters on software instruments, plugins, and external hardware. It offers various modulation sources like LFOs and random generators to add dynamic movement to your audio.

Does GSDSP MMM have ads?

No, GSDSP MMM does not contain advertisements, providing an uninterrupted user experience.

What devices does GSDSP MMM support?

GSDSP MMM is available on iPhone, iPad, and iPod devices.

How often is GSDSP MMM updated?

The latest version is 2026.1, and the app was last updated on March 11, 2026, indicating a recent update cycle.

What is the rating for GSDSP MMM?

GSDSP MMM has an excellent rating of 4.8 stars based on 31 user reviews.

Is GSDSP MMM suitable for live performances?

Yes, GSDSP MMM includes a dedicated Performance Skin with a restrained color palette designed for low-light and stage environments, minimizing distractions during live sets.

What is the difference between MMM and MMMm?

MMM includes audio input for Envelope Followers and audio-reactive modulation, making it ideal as an audio plugin. MMMm is a MIDI-only FX version for hosts that require a pure MIDI processor.

What age rating does GSDSP MMM have?

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