Comparison

GliderVerb 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

GliderVerb

This app offers a unique reverberation effect that simulates a room changing shape, creating evolving soundscapes. It provides a wide range of sonic possibilities, from smooth resonances to granular disintegration, with extensive control over its parameters.

Highlights
  • Continually modulated reverb algorithm
  • Pitch resonator
  • Ribbon resonance player
  • Built-in stereo sampler
  • Control manager LFO
  • Audiobus and Inter-App Audio support
  • Preset morphing pad
Features
Read full description

GliderVerb is a “Reverberator with Glissandos” simulating a room gradually changing its shape. It is an expanded version of an algorithm created by James McCartney for his Supercollider 2 programming language. The original algorithm had no user-variable parameters: this device adds a series of parameters to create a wide palette of effects; from evolving reverberations to granular disintegration to smooth resonances. Main Features: - Audiobus and Inter-App Audio support (sender and FX) - Continually Modulated Reverb Algorithm - Pitch Resonator - Ribbon Resonance Player - Pad impulse generator - Built In Stereo Sampler with varispeed - Control Manager LFO for Parameters - Midibus, Virtual Midi and Network: 14 bit NRPN controllers - File Manager, sharing common audio files via iTunes, Dropbox and AudioCopy - Snapshots Presets Morphing Pad - Post Fx Chain: Low-shelf Filter, High-shelf and Compressor New Version! We removed the "annoying voice" and now you can use all the Gliderverb features, even the Pad and the Ribbon. The only limitation is you can't save new presets; but you still can load the old ones you made, using the two arrows you find on the left and right side of the preset name (top side of the main window). With the in-App purchase you can access the Preset Manager, Control Manager and MIDI enable the Pad.

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

GliderVerb4 screens
GSDSP MMM4 screens

Verdict

The call

The clearest difference is in-app purchases: GSDSP MMM at none against GliderVerb's 1. GSDSP MMM also leads on update cadence (every 5 weeks vs every 4 months) and iOS requirement (13.0 vs 17.0). GliderVerb's advantage is review sentiment (80% vs 67%). 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. GliderVerb sells 1 one-off in-app purchase. GSDSP MMM asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GSDSP MMM holds the better App Store score, 4.7 against 4.6. Both are backed by a comparable volume of ratings — 86 and 36 respectively. Written reviews complicate that: 80% of GliderVerb's written reviews are positive against 67% of GSDSP MMM's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

GliderVerb ships an update every 4 months, GSDSP MMM every 5 weeks. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.

Scorecard5 real differences · 5 level
GliderVerb versus GSDSP MMM: the parameters behind the verdict, then further details
ParameterGliderVerbGSDSP MMM
PriceFreeFree
Rating4.6 (86 ratings)4.7 (36 ratings) — better
Positive reviews80.0% of reviews — better66.7% of reviews
Number of ratings86 — better36
Update frequencyEvery 4 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size13 MB65 MB
Age rating4+4+
DeveloperAmazing NoisesGustav Scholda

Customer experience

GliderVerb

All ratings85 ratings
Positive88.2%
Neutral3.5%
Negative8.2%
Written reviews50 reviews
Positive80.0%
Neutral4.0%
Negative16.0%

GSDSP MMM

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

Bugs and requests

GliderVerb

Reported bugs

8 issues
  • Audiobus problems restoring paid app
  • In-app purchase restore screen is blank or stalls
  • App crashes when importing samples via AudioShare
  • Cannot get back to main screen from adjustment screen
  • Menus lack exit/done/close buttons, leading to being stuck
Show 3 more
  • App crashes when trying to upgrade to full version
  • IAA bugs after recent update, worse than before
  • App crashes when recording long files for iMovie

Requested features

8 requests
  • Implement shared user presets
  • Default LFO Hz frequency to nothing or allow saving LFO presets
  • Create a visual UI or partner with UI designers
  • Add preset forward/back buttons or reduce menu diving
  • Allow apps to recognize and share samples/documents directly
Show 3 more
  • Fix IAA bugs and improve compatibility
  • Add complete bundle deals
  • Consider adding more functionality to AUv3 version

GSDSP MMM

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

GliderVerb

One-time1
  • Full Version$4.99
None

GSDSP MMM

No in-app purchases

Questions

Is GliderVerb free?
GliderVerb 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, GliderVerb or GSDSP MMM?
GSDSP MMM is rated higher. GliderVerb averages 4.6 out of 5 from 86 ratings, while GSDSP MMM averages 4.7 from 36 ratings.
Do GliderVerb or GSDSP MMM have ads?
Neither GliderVerb nor GSDSP MMM shows ads.
Which is updated more often, GliderVerb or GSDSP MMM?
GliderVerb ships an update every 4 months, and GSDSP MMM every 5 weeks. Most recently, GliderVerb was updated on November 1, 2026 and GSDSP MMM on October 27, 2026.

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