Comparison

GSDSP MMM vs Chord Roulette

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GSDSP MMM

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.

Highlights
  • 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
Features
Read full description

A powerful MIDI modulation engine for controlling plugins, hardware, and instruments using LFOs, random sources, macros, and audio-based modulation. Modulate Everything MMM is a MIDI controller and modulation workstation designed to control any parameter that accepts MIDI CC — software instruments, plugins, external hardware, or any MIDI-capable device. Create modulation using LFOs, Random Generators, Envelope Followers, XY pads, and more. No more drawing of automation curves, keep your audio dynamic and exciting with ease. Perform Live MMM includes a dedicated Performance Skin designed for low-light and stage environments. It uses a restrained, red-accented color palette that preserves focus and minimizes visual distraction while performing. The interface remains clear and readable in dark settings, ensuring stable workflow during your live performance. MMM vs MMMm MMM includes audio input, enabling Envelope Followers, audio-reactive modulation, and audio output — ideal when used as an audio plugin. MMMm, by contrast, is a MIDI-only FX version for hosts such as Logic Pro or AUM that require a pure MIDI processor. Both versions support MIDI input and output and provide the same core modulators. MMM is an AUv3 audio effect plugin compatible with Logic Pro, AUM, Cubasis, GarageBand and many more. A Desktop version is also available for Windows and macOS (VST3 / AU / AAX). More information here: https://gs-dsp.com/products So what are you waiting for?

About

Chord Roulette

This AUv3 MIDI plugin transforms a single MIDI note into a wide range of harmonious chords, enabling generative music composition. It offers extensive control over parameters, scales, and real-time adjustments for creative musical exploration.

Highlights
  • Chord generation from single MIDI notes
  • Automation-ready parameters
  • Generative music composition
  • Diverse scale and mode selection
  • Real-time precision adjustments
  • AUv3 compatibility for DAWs
Features
Read full description

Welcome to Chord Roulette, your gateway to boundless musical creativity. Chord Roulette is an AUv3 MIDI plugin that takes a single MIDI note and transforms it into a mesmerizing array of harmonious chords, offering an infinite realm of possibilities for generative music composition. Key Features: - Chord Generation Mastery: Instantly convert a single MIDI note into a rich tapestry of harmonically intricate chords, exploring scales and tonalities effortlessly. - Automation at Your Fingertips: Every parameter within Chord Roulette is automation-ready, granting you meticulous control over your compositions. - Generative Magic: Witness your musical ideas evolve and expand organically, giving birth to fresh and captivating compositions with minimal effort. - Scale Selection Flexibility: Choose from a diverse array of scales, modes, and tonalities to craft the perfect musical atmosphere. - Real-Time Precision: Fine-tune your chord progressions and melodies on the fly, ensuring each note aligns perfectly with your vision. - AUv3 Compatibility: Seamlessly integrate Chord Roulette into your preferred iOS DAWs, offering complete creative control. With Chord Roulette, you possess the ultimate tool to compose generative music that reflects your unique artistic vision. Whether you're a composer, producer, or performer, our plugin empowers you to craft musical journeys that captivate and inspire. Unleash your musical imagination. Download Chord Roulette now and embark on an endless voyage of generative music composition!

Screenshots

GSDSP MMM4 screens
Chord Roulette1 screens

Verdict

The call

The clearest difference is price: GSDSP MMM at Free against Chord Roulette's $0.99. GSDSP MMM also leads on rating (4.7 vs 4.4) and iOS requirement (13.0 vs 15.6). Chord Roulette's advantage is update cadence (every 3 days vs every 5 weeks). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

GSDSP MMM is free to download; Chord Roulette costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

GSDSP MMM holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 36 and 23 respectively. Written reviews complicate that: 67% of GSDSP MMM's written reviews are positive against 71% of Chord Roulette's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

GSDSP MMM ships an update every 5 weeks, Chord Roulette every 3 days. The most recent releases landed on October 27, 2026 and October 21, 2026 respectively.

Scorecard5 real differences · 5 level
GSDSP MMM versus Chord Roulette: the parameters behind the verdict, then further details
ParameterGSDSP MMMChord Roulette
PriceFree — better$0.99
Rating4.7 (36 ratings) — better4.4 (23 ratings)
Positive reviews66.7% of reviews71.4% of reviews — better
Number of ratings36 — better23
Update frequencyEvery 5 weeksEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size65 MB3 MB
Age rating4+4+
DeveloperGustav ScholdaDenis Safiullin

Customer experience

GSDSP MMM

All ratings36 ratings
Positive94.4%
Neutral0.0%
Negative5.6%
Written reviews6 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Chord Roulette

All ratings20 ratings
Positive85.0%
Neutral0.0%
Negative15.0%
Written reviews21 reviews
Positive71.4%
Neutral0.0%
Negative28.6%

In-app purchases

None

GSDSP MMM

No in-app purchases

None

Chord Roulette

No in-app purchases

Questions

Is GSDSP MMM free?
GSDSP MMM is free to download, with no in-app purchases.
Is Chord Roulette free?
Chord Roulette costs $0.99, with no in-app purchases.
Which has better reviews, GSDSP MMM or Chord Roulette?
GSDSP MMM is rated higher. GSDSP MMM averages 4.7 out of 5 from 36 ratings, while Chord Roulette averages 4.4 from 23 ratings.
Do GSDSP MMM or Chord Roulette have ads?
Neither GSDSP MMM nor Chord Roulette shows ads.
Which is updated more often, GSDSP MMM or Chord Roulette?
GSDSP MMM ships an update every 5 weeks, and Chord Roulette every 3 days. Most recently, GSDSP MMM was updated on October 27, 2026 and Chord Roulette on October 21, 2026.

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