Comparison

SimplyFlange 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

SimplyFlange

This audio effect app provides a straightforward flange effect for a retro sound. It functions as an AUv3 app extension, compatible with hosts like AUM, Cubasis, and GarageBand.

Highlights
  • Retro flange audio effect
  • AUv3 app extension
  • Compatible with AUM, Cubasis, GarageBand
  • Standalone app functionality
  • Simple and straightforward interface
Features
Read full description

A simple but straightforward flange audio effect to give you that nice retro feel. The filter exists in an AUv3 app extension so it is available for use in any host app that supports AudioUnit components such as AUM or Cubasis or GarageBand.

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

SimplyFlange2 screens
GSDSP MMM4 screens

Verdict

The call

The clearest difference is price: GSDSP MMM at Free against SimplyFlange's $0.99. GSDSP MMM also leads on ratings volume (36 vs 1) and iOS requirement (13.0 vs 16.6). SimplyFlange's advantage is review sentiment (100% vs 67%) and rating (5.0 vs 4.7). On ads, in-app purchases and device support 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

GSDSP MMM is free to download; SimplyFlange costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

SimplyFlange holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: GSDSP MMM has 36 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of SimplyFlange's written reviews are positive against 67% of GSDSP MMM's.

UpkeepUpdate frequency

SimplyFlange ships an update every 9 days, GSDSP MMM every 5 weeks. The most recent releases landed on October 4, 2026 and October 27, 2026 respectively.

Scorecard7 real differences · 3 level
SimplyFlange versus GSDSP MMM: the parameters behind the verdict, then further details
ParameterSimplyFlangeGSDSP MMM
Price$0.99Free — better
Rating5.0 (1 ratings) — better4.7 (36 ratings)
Positive reviews100.0% of reviews — better66.7% of reviews
Number of ratings136 — better
Update frequencyEvery 9 days — betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS16.613.0 — better
Further details — not scored
Size5 MB65 MB
Age rating4+4+
DeveloperBrad HowesGustav Scholda

Customer experience

SimplyFlange

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

GSDSP MMM

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

In-app purchases

None

SimplyFlange

No in-app purchases

None

GSDSP MMM

No in-app purchases

Questions

Is SimplyFlange free?
SimplyFlange costs $0.99, with no in-app purchases.
Is GSDSP MMM free?
GSDSP MMM is free to download, with no in-app purchases.
Which has better reviews, SimplyFlange or GSDSP MMM?
SimplyFlange is rated higher. SimplyFlange averages 5.0 out of 5 from 1 ratings, while GSDSP MMM averages 4.7 from 36 ratings.
Do SimplyFlange or GSDSP MMM have ads?
Neither SimplyFlange nor GSDSP MMM shows ads.
Which is updated more often, SimplyFlange or GSDSP MMM?
SimplyFlange ships an update every 9 days, and GSDSP MMM every 5 weeks. Most recently, SimplyFlange was updated on October 4, 2026 and GSDSP MMM on October 27, 2026.

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