Comparison

GSDSP MMMm 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 MMMm

This app provides a powerful MIDI modulation engine to control various plugins, hardware, and instruments. It offers a range of modulation sources like LFOs and random generators, and includes a dedicated performance skin for live use. It's a MIDI-only FX version for hosts requiring pure MIDI processing.

Highlights
  • MIDI CC control for plugins and hardware
  • LFO, Random, Envelope Follower modulators
  • XY pads for modulation
  • Dedicated Performance Skin for live use
  • AUv3 MIDI FX plugin
  • Desktop versions available
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 MMMm 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 MMMm 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. MMMm is an AUv3 midi 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

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 MMMm4 screens
Chord Roulette1 screens

Verdict

The call

The clearest difference is price: GSDSP MMMm at Free against Chord Roulette's $0.99. GSDSP MMMm also leads on rating (4.9 vs 4.3) and review sentiment (100% vs 71%). Chord Roulette's advantage is update cadence (every 3 days vs every 6 weeks). On ratings volume, ads, in-app purchases and device support 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 MMMm 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 MMMm holds the better App Store score, 4.9 against 4.3. Both are backed by a comparable volume of ratings — 14 and 20 respectively. Written reviews point the same way: 100% of GSDSP MMMm's written reviews are positive against 71% of Chord Roulette's.

UpkeepUpdate frequency

GSDSP MMMm ships an update every 6 weeks, Chord Roulette every 3 days. The most recent releases landed on September 11, 2026 and September 18, 2026 respectively.

Scorecard6 real differences · 4 level
GSDSP MMMm versus Chord Roulette: the parameters behind the verdict, then further details
ParameterGSDSP MMMmChord Roulette
PriceFree — better$0.99
Rating4.9 (14 ratings) — better4.3 (20 ratings)
Positive reviews100.0% of reviews — better71.4% of reviews
Number of ratings1420 — better
Update frequencyEvery 6 weeksEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size44 MB3 MB
Age rating4+4+
DeveloperGustav ScholdaDenis Safiullin

Customer experience

GSDSP MMMm

All ratings13 ratings
Positive92.3%
Neutral7.7%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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 MMMm

No in-app purchases

None

Chord Roulette

No in-app purchases

Questions

Is GSDSP MMMm free?
GSDSP MMMm 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 MMMm or Chord Roulette?
GSDSP MMMm is rated higher. GSDSP MMMm averages 4.9 out of 5 from 14 ratings, while Chord Roulette averages 4.3 from 20 ratings.
Do GSDSP MMMm or Chord Roulette have ads?
Neither GSDSP MMMm nor Chord Roulette shows ads.
Which is updated more often, GSDSP MMMm or Chord Roulette?
GSDSP MMMm ships an update every 6 weeks, and Chord Roulette every 3 days. Most recently, GSDSP MMMm was updated on September 11, 2026 and Chord Roulette on September 18, 2026.

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