Comparison

PolyIvoks Filter vs GSDSP MMM

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

Head to head
About

PolyIvoks Filter

This audio effect plugin emulates the sound of a legendary 1980s Soviet synthesizer filter. It offers stereo output and a range of modulation and envelope controls for creative sound shaping. A demo version is available with limited free play time.

Highlights
  • Standalone and AUv3 plugin
  • Modeled vintage filter
  • LFO and envelope modulation
  • Stereo output
  • Scalable GUI
  • Undo/Redo and A/B comparison
Read full description

PolyIvoks Filter AUv3 plug-in — comes as time-limited Demo-version for you to try. It gives you 5 minutes of Free play time. (You can reload the PolyIvoks Filter AUv3 plug-in as many times as you want, thereby you get the Demo period again and again.) Unlimited version of PolyIvoks Filter AUv3 plug-in comes as In-App Purchase PolyIvoks Filter developed on the basis of the filter of the legendary Soviet synthesizer from 1980s, and only now the legendary Soviet analog sound became available in stereo mode. Features: • Standalone and AUv3 plug-in; • Precise port of Rack Extensions plug-in; • Modeled vintage Filter; • Undo/Redo; • A/B comparison; • 2x/4x/8x Upsampling; • Macro controllers; • Built-in Gain Match; • Scalable GUI. MODULATOR house the LFO controls: MODE — which offers four waveforms, including Noise and a stepped function for Sample & Hold effects, well as SPEED control. FILTER: The four controls adjust CUTOFF, RESONANCE, LPF to BPF switch, MODULATION (LFO) level and ENVELOPE level (You can set positive or negative values). ENVELOPE: repeating ATTACK/DECAY envelope. MASTER: the rightmost unit has 3 regulators ENVELOPE level (You can set positive or negative values), VOLUME (output gain) and DIGITAL/ANALOG switch. To use PolyIvoks Filter as a plug-in, you need an AUv3-compatible host app like GarageBand, Auria, AUM, Cubasis and more — PolyIvoks Filter will appear in the list of Audio Unit extensions for effect plug-ins in the host app.

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?

Screenshots

PolyIvoks Filter4 screens
GSDSP MMM4 screens

Verdict

The call

The clearest difference is in-app purchases: GSDSP MMM at none against PolyIvoks Filter's 1. PolyIvoks Filter's advantage is update cadence (fortnightly vs every 6 weeks) and review sentiment (86% vs 75%). On price, rating, ratings volume and ads 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

Both are free to download. PolyIvoks Filter sells 1 one-off in-app purchase. GSDSP MMM asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for PolyIvoks Filter against 4.8 for GSDSP MMM. Both are backed by a comparable volume of ratings — 21 and 34 respectively. Written reviews are what separate them: 86% of PolyIvoks Filter's written reviews are positive against 75% of GSDSP MMM's.

UpkeepUpdate frequency

PolyIvoks Filter ships an update fortnightly, GSDSP MMM every 6 weeks. The most recent releases landed on September 13, 2026 and August 21, 2026 respectively.

Scorecard5 real differences · 5 level
PolyIvoks Filter versus GSDSP MMM: the parameters behind the verdict, then further details
ParameterPolyIvoks FilterGSDSP MMM
PriceFreeFree
Rating4.7 (21 ratings)4.8 (34 ratings) — better
Positive reviews85.7% of reviews — better75.0% of reviews
Number of ratings2134 — better
Update frequencyFortnightly — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better12.0
Further details — not scored
Size17 MB65 MB
Age rating4+4+
DeveloperRRS, OOOGustav Scholda

Customer experience

PolyIvoks Filter

All ratings21 ratings
Positive90.5%
Neutral0.0%
Negative9.5%
Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

GSDSP MMM

All ratings31 ratings
Positive96.8%
Neutral0.0%
Negative3.2%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

In-app purchases

1 purchases

PolyIvoks Filter

One-time1
  • RRS PolyIvoks Filter Unlimited$4.99
None

GSDSP MMM

No in-app purchases

Questions

Is PolyIvoks Filter free?
PolyIvoks Filter is free to download, with in-app purchases available.
Is GSDSP MMM free?
GSDSP MMM is free to download, with no in-app purchases.
Which has better reviews, PolyIvoks Filter or GSDSP MMM?
GSDSP MMM is rated higher. PolyIvoks Filter averages 4.7 out of 5 from 21 ratings, while GSDSP MMM averages 4.8 from 34 ratings.
Do PolyIvoks Filter or GSDSP MMM have ads?
Neither PolyIvoks Filter nor GSDSP MMM shows ads.
Which is updated more often, PolyIvoks Filter or GSDSP MMM?
PolyIvoks Filter ships an update fortnightly, and GSDSP MMM every 6 weeks. Most recently, PolyIvoks Filter was updated on September 13, 2026 and GSDSP MMM on August 21, 2026.

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