Comparison

GSDSP MMM vs jAmp IR

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

jAmp IR

This tool loads impulse responses for guitar and bass amp cabinet simulation. It allows mixing two impulse responses and offers fine control over filters, gain, and phase. The app includes five high-quality impulse responses.

Highlights
  • Impulse response loader
  • Cabinet simulator for guitar and bass
  • Mix two impulse responses
  • High and low pass filters
  • Gain control
  • Phase inversion
Features
Read full description

jAmp IR is a zero latency impulse response loader tool in AUv3 plugin format. It is designed to be a cabinet simulator for guitar and bass amps. Two impulse responses can be mixed. Furthermore there is fine level control in the form of high and low pass filters, gain control, and phase inversion. The app comes with 5 high quality impulse responses.

Screenshots

GSDSP MMM4 screens
jAmp IR1 screens

Verdict

The call

GSDSP MMM and jAmp IR are too close to call on the numbers: across 10 compared parameters — price, rating, review sentiment and ratings volume among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for GSDSP MMM against 4.7 for jAmp IR. Both are backed by a comparable volume of ratings — 36 and 15 respectively. Written reviews split almost evenly too, at 67% and 67% positive.

UpkeepUpdate frequency

GSDSP MMM ships an update every 5 weeks, jAmp IR every 2 weeks. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

ScorecardNo meaningful differences
GSDSP MMM versus jAmp IR: the parameters behind the verdict, then further details
ParameterGSDSP MMMjAmp IR
PriceFreeFree
Rating4.7 (36 ratings)4.7 (15 ratings) — better
Positive reviews66.7% of reviews66.7% of reviews
Number of ratings36 — better15
Update frequencyEvery 5 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS13.0 — better14.0
Further details — not scored
Size65 MB1 MB
Age rating4+4+
DeveloperGustav ScholdaJan Maes

Customer experience

GSDSP MMM

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

jAmp IR

All ratings15 ratings
Positive93.3%
Neutral0.0%
Negative6.7%
Written reviews6 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

GSDSP MMM

No in-app purchases

None

jAmp IR

No in-app purchases

Questions

Is GSDSP MMM free?
GSDSP MMM is free to download, with no in-app purchases.
Is jAmp IR free?
jAmp IR is free to download, with no in-app purchases.
Which has better reviews, GSDSP MMM or jAmp IR?
jAmp IR is rated higher. GSDSP MMM averages 4.7 out of 5 from 36 ratings, while jAmp IR averages 4.7 from 15 ratings.
Do GSDSP MMM or jAmp IR have ads?
Neither GSDSP MMM nor jAmp IR shows ads.
Which is updated more often, GSDSP MMM or jAmp IR?
GSDSP MMM ships an update every 5 weeks, and jAmp IR every 2 weeks. Most recently, GSDSP MMM was updated on October 27, 2026 and jAmp IR on October 24, 2026.

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