GSDSP MMM vs jAmp IR
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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?
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.
- Impulse response loader
- Cabinet simulator for guitar and bass
- Mix two impulse responses
- High and low pass filters
- Gain control
- Phase inversion
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
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.
| Parameter | GSDSP MMM | jAmp IR |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (36 ratings) | 4.7 (15 ratings) — better |
| Positive reviews | 66.7% of reviews | 66.7% of reviews |
| Number of ratings | 36 — better | 15 |
| Update frequency | Every 5 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 65 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Gustav Scholda | Jan Maes |
Customer experience
GSDSP MMM
jAmp IR
In-app purchases
GSDSP MMM
No in-app purchases
jAmp IR
No in-app purchases









