# GSDSP MMM vs ShowMIDI

GSDSP MMM and ShowMIDI both sit at 4.7 stars, but that hides the real split: 88% of ShowMIDI's written reviews are positive against 67% of GSDSP MMM's. On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.7 for GSDSP MMM against 4.8 for ShowMIDI. Both are backed by a comparable volume of ratings — 35 and 18 respectively. Written reviews are what separate them: 67% of GSDSP MMM's written reviews are positive against 88% of ShowMIDI's.

GSDSP MMM ships an update every 5 weeks, ShowMIDI every 2 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | GSDSP MMM | ShowMIDI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (35 ratings)](https://appshunter.io/ios/app/gsdsp-mmm/id6443846329/reviews) | **[4.8 (18 ratings)](https://appshunter.io/ios/app/showmidi/id6472608850/reviews)** |
| Number of ratings | **35** | 18 |
| Positive reviews | 66.7% of reviews | **87.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 65 MB | 8 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gustav Scholda](https://appshunter.io/developer/1642323227) | [Uwyn, LLC](https://appshunter.io/developer/597132109) |

## 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, Vision Pro support

**In-app purchases:** none


### ShowMIDI

[App page](https://appshunter.io/ios/app/showmidi/id6472608850)

This application provides a real-time, glanceable view of all MIDI activity on your computer. It visualizes various MIDI messages and allows you to pause the flow for a data snapshot. It can be used as a standalone tool or an AUv3 plugin within your DAW.

**Highlights:** Real-time MIDI visualization, Auto-hides irrelevant messages, Pause and snapshot data, Standalone application, AUv3 plugin support, Supports MPE configuration

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GSDSP MMM free?

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

### Is ShowMIDI free?

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

### Which has better reviews, GSDSP MMM or ShowMIDI?

ShowMIDI is rated higher. GSDSP MMM averages 4.7 out of 5 from 35 ratings, while ShowMIDI averages 4.8 from 18 ratings.

### Do GSDSP MMM or ShowMIDI have ads?

Neither GSDSP MMM nor ShowMIDI shows ads.

### Which is updated more often, GSDSP MMM or ShowMIDI?

GSDSP MMM ships an update every 5 weeks, and ShowMIDI every 2 months. Most recently, GSDSP MMM was updated on October 25, 2026 and ShowMIDI on October 24, 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.*