Filterjam vs GSDSP MMM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Filterjam
This app offers a multiband resonant filter for creating unique audio effects. It divides input signals into four bands, allowing for various sonic manipulations from subtle enhancements to extreme sound mangling.
- Multiband resonant filtering
- 4-band signal division
- Sum or multiply band modes
- Versatile sound shaping
- Ringmod-like effects
Read full descriptionHide full description
Filterjam is a multi-band resonant filter delivering weird ringmod-like filtered sounds. The input signal is divided into 4 bands that are then summed or multiplied together according to the selected mode. Filterjam can be very harsh or gentle, it can add brightness or depth to synth sounds, but it can also completely mangle acoustic sources.
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
Read full descriptionHide 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?
Screenshots
Verdict
The clearest difference is update cadence: GSDSP MMM at every 5 weeks against Filterjam's every 22 months. GSDSP MMM also leads on iOS requirement (12.0 vs 14.0). Filterjam's advantage is rating (5.0 vs 4.7) and review sentiment (83% vs 67%). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Filterjam holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 34 and 36 respectively. Written reviews point the same way: 83% of Filterjam's written reviews are positive against 67% of GSDSP MMM's.
Filterjam ships an update every 22 months, GSDSP MMM every 5 weeks. The most recent releases landed on October 15, 2026 and October 20, 2026 respectively.
| Parameter | Filterjam | GSDSP MMM |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (34 ratings) — better | 4.7 (36 ratings) |
| Positive reviews | 83.3% of reviews — better | 66.7% of reviews |
| Number of ratings | 34 | 36 — better |
| Update frequency | Every 22 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 25 MB | 65 MB |
| Age rating | 4+ | 4+ |
| Developer | AudioThing Ltd. | Gustav Scholda |
Customer experience
Filterjam
GSDSP MMM
In-app purchases
Filterjam
No in-app purchases
GSDSP MMM
No in-app purchases








