Comparison

TB GonioMeter vs GSDSP MMMm

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

Head to head
About

TB GonioMeter

Analyze stereo image imbalances and frequency correlations in real-time. Ensure your audio content is high quality and compatible with mono down-mixes, crucial for mobile entertainment. This tool offers detailed waveform inspection and balance spectrum analysis.

Highlights
  • Real-time goniometer for stereo image waveforms
  • Real-time correlation meter and spectrum
  • Real-time stereo balance and spectrum meter
  • Color themes for UI
  • Mono down-mix compatibility check
  • Optimized for iPad, compatible with iPhone/iPod Touch
Read full description

ToneBoosters GonioMeter is a one-stop stereo image analysis AUv3 plug-in. Easily identify stereo image imbalance or frequency ranges with negative correlation. Ensure that the content you create is of high quality and mono down-mix compatible, an essential requirement for mobile entertainment! The ToneBoosters GonioMeter stand-alone app captures the microphone input and processes the signals in real time. Since most iOS devices only have mono microphone capabilities, we strongly suggest to use the integrated AUv3 plug-in (app extension) version instead. To use it as a plug-in, use an AUv3-compatible host app such as Steinberg Cubasis, Apple Garageband, Audio Evolution Mobile Studio, Auria, AUM, or others. ToneBoosters GonioMeter will appear in the list of Audio Unit extensions for effect plug-ins. Key features: - Real-time goniometer to inspect stereo image waveforms - Real-time correlation meter and correlation spectrum meter - Real-time stereo balance an stereo balance spectrum meter - Color themes for the user interface - Max screen support in Garageband - Optimised for iPad and compatible with iPhone and iPod Touch What you should know: - Licenses acquired for this platform are not compatible with other platforms. - Audio Unit (AUv3) extensions require an iPad mini 2, iPad 4 or later models.

About

GSDSP MMMm

This app provides a powerful MIDI modulation engine to control various plugins, hardware, and instruments. It offers a range of modulation sources like LFOs and random generators, and includes a dedicated performance skin for live use. It's a MIDI-only FX version for hosts requiring pure MIDI processing.

Highlights
  • MIDI CC control for plugins and hardware
  • LFO, Random, Envelope Follower modulators
  • XY pads for modulation
  • Dedicated Performance Skin for live use
  • AUv3 MIDI FX plugin
  • Desktop versions available
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 MMMm 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 MMMm 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. MMMm is an AUv3 midi 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

Screenshots

TB GonioMeter2 screens
GSDSP MMMm4 screens

Verdict

The call

The clearest difference is rating: GSDSP MMMm at 4.9 against TB GonioMeter's 4.6. On price, review sentiment, ratings volume and update cadence 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

GSDSP MMMm holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 23 and 14 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

TB GonioMeter ships an update every 2 months, GSDSP MMMm every 6 weeks. The most recent releases landed on October 1, 2026 and October 15, 2026 respectively.

Scorecard1 real difference · 9 level
TB GonioMeter versus GSDSP MMMm: the parameters behind the verdict, then further details
ParameterTB GonioMeterGSDSP MMMm
PriceFreeFree
Rating4.6 (23 ratings)4.9 (14 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings23 — better14
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size11 MB44 MB
Age rating4+4+
DeveloperToneBoostersGustav Scholda

Customer experience

TB GonioMeter

All ratings23 ratings
Positive91.3%
Neutral0.0%
Negative8.7%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

GSDSP MMMm

All ratings13 ratings
Positive92.3%
Neutral7.7%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

TB GonioMeter

No in-app purchases

None

GSDSP MMMm

No in-app purchases

Questions

Is TB GonioMeter free?
TB GonioMeter is free to download, with no in-app purchases.
Is GSDSP MMMm free?
GSDSP MMMm is free to download, with no in-app purchases.
Which has better reviews, TB GonioMeter or GSDSP MMMm?
GSDSP MMMm is rated higher. TB GonioMeter averages 4.6 out of 5 from 23 ratings, while GSDSP MMMm averages 4.9 from 14 ratings.
Do TB GonioMeter or GSDSP MMMm have ads?
Neither TB GonioMeter nor GSDSP MMMm shows ads.
Which is updated more often, TB GonioMeter or GSDSP MMMm?
TB GonioMeter ships an update every 2 months, and GSDSP MMMm every 6 weeks. Most recently, TB GonioMeter was updated on October 1, 2026 and GSDSP MMMm on October 15, 2026.

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