# GSDSP MMM vs TB GonioMeter

The clearest difference is review sentiment: TB GonioMeter at 100% against GSDSP MMM's 75%. GSDSP MMM's advantage is rating (4.8 vs 4.6). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

GSDSP MMM holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 34 and 23 respectively. Written reviews complicate that: 75% of GSDSP MMM's written reviews are positive against 100% of TB GonioMeter's, so the app with the better star average is not the one people write more warmly about.

GSDSP MMM ships an update every 6 weeks, TB GonioMeter every 2 months. The most recent releases landed on August 21, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | GSDSP MMM | TB GonioMeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (34 ratings)](https://appshunter.io/ios/app/gsdsp-mmm/id6443846329/reviews)** | [4.6 (23 ratings)](https://appshunter.io/ios/app/tb-goniometer/id6444903624/reviews) |
| Number of ratings | **34** | 23 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 65 MB | 11 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gustav Scholda](https://appshunter.io/developer/1642323227) | [ToneBoosters](https://appshunter.io/developer/1472446500) |

## What reviewers say

### GSDSP MMM

[App page](https://appshunter.io/ios/app/gsdsp-mmm/id6443846329)

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:** macOS Compatibility

**In-app purchases:** none


### TB GonioMeter

[App page](https://appshunter.io/ios/app/tb-goniometer/id6444903624)

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

**In-app purchases:** none


## Frequently asked questions

### Is GSDSP MMM free?

GSDSP MMM is free to download, with no in-app purchases.

### Is TB GonioMeter free?

TB GonioMeter is free to download, with no in-app purchases.

### Which has better reviews, GSDSP MMM or TB GonioMeter?

GSDSP MMM is rated higher. GSDSP MMM averages 4.8 out of 5 from 34 ratings, while TB GonioMeter averages 4.6 from 23 ratings.

### Do GSDSP MMM or TB GonioMeter have ads?

Neither GSDSP MMM nor TB GonioMeter shows ads.

### Which is updated more often, GSDSP MMM or TB GonioMeter?

GSDSP MMM ships an update every 6 weeks, and TB GonioMeter every 2 months. Most recently, GSDSP MMM was updated on August 21, 2026 and TB GonioMeter on September 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*