PowerPlay5 vs GSDSP MMMm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PowerPlay5
This app functions as a MIDI controller, allowing users to play musical power chords by moving their iPhone and tapping the screen. It requires a separate synthesizer app to produce sound, offering a unique, choreography-like approach to music creation.
- MIDI controller functionality
- Power chord playing
- Motion-based input
- Requires external synthesizer app
- Interactive choreography-like gameplay
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This app is a unique MIDI controller, and fun to play, but there are three concepts to understand first. Concept 1 - POWER CHORDS - There is a musical chord, called a power chord, usually associated with guitar playing. Think of yourself as a guitar player on stage, but instead of holding a guitar you're moving around while holding an iPhone. Concept 2 - MIDI CONTROLLER - PowerPlay5 is a midi controller app. It doesn't create any sound on its own. Instead it tells another app which notes to play. The other app (a synthesizer app) then creates the sound of the chord being played. Concept 3 - THE SETUP - Usually you will open the synthesizer app first, choose a sound, and then make sure "Background Audio" is on. After that, open PowerPlay5 and start playing. (Note that some synthesizer apps also require a MIDI bridge app. See the instructions at the support website for more information.) This app is interesting because you play chords by aiming the iPhone in different directions while tapping with your thumb on the screen. It's almost like a form of choreography. Learning what direction to aim the phone to get the chord you want next is part of the fun of playing. The best way to understand where all the chords are is to look at the instructions pdf found at the support website.
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.
- 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
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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
Verdict
The clearest difference is update cadence: GSDSP MMMm at every 5 weeks against PowerPlay5's every 23 months. GSDSP MMMm also leads on ratings volume (16 vs 1). On price, rating, ads and in-app purchases 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
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 — 5.0 for PowerPlay5 against 4.9 for GSDSP MMMm. That said, the two scores are not equally well evidenced: GSDSP MMMm has 16 ratings behind it against 1, so its average is the more settled of the two.
PowerPlay5 ships an update every 23 months, GSDSP MMMm every 5 weeks. The most recent releases landed on November 1, 2026 and October 27, 2026 respectively.
| Parameter | PowerPlay5 | GSDSP MMMm |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.9 (16 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 16 — better |
| Update frequency | Every 23 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 4 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Malcolm Mugglin | Gustav Scholda |
Customer experience
PowerPlay5
GSDSP MMMm
In-app purchases
PowerPlay5
No in-app purchases
GSDSP MMMm
No in-app purchases







