# Motion Synth vs GSDSP MMM

The clearest difference is rating: GSDSP MMM at 4.8 against Motion Synth's 3.5. GSDSP MMM also leads on update cadence (every 6 weeks vs every 4 months). Motion Synth's advantage is iOS requirement (9.0 vs 12.0). On price, review sentiment, ratings volume 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 3.5. Both are backed by a comparable volume of ratings — 40 and 34 respectively. Written reviews point the same way: 73% of Motion Synth's written reviews are positive against 75% of GSDSP MMM's.

Motion Synth ships an update every 4 months, GSDSP MMM every 6 weeks. The most recent releases landed on October 13, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Motion Synth | GSDSP MMM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (40 ratings)](https://appshunter.io/ios/app/motion-synth/id945266624/reviews) | **[4.8 (34 ratings)](https://appshunter.io/ios/app/gsdsp-mmm/id6443846329/reviews)** |
| Number of ratings | **40** | 34 |
| Positive reviews | 73.3% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 48 MB | 65 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AUUG](https://appshunter.io/developer/945266623) | [Gustav Scholda](https://appshunter.io/developer/1642323227) |

## What reviewers say

### Motion Synth

[App page](https://appshunter.io/ios/app/motion-synth/id945266624)

This app turns your iPhone or iPod touch into a musical instrument. Play notes with touch and control sound with motion. It can be used standalone, with other iOS music apps, or even external hardware and laptop software.

**Highlights:** Play notes via touch, Shape sound through motion, Control in-app sounds, Control other iOS music apps, Control external hardware synths, Control laptop audio/visual software

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Motion Synth free?

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

### Is GSDSP MMM free?

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

### Which has better reviews, Motion Synth or GSDSP MMM?

GSDSP MMM is rated higher. Motion Synth averages 3.5 out of 5 from 40 ratings, while GSDSP MMM averages 4.8 from 34 ratings.

### Do Motion Synth or GSDSP MMM have ads?

Neither Motion Synth nor GSDSP MMM shows ads.

### Which is updated more often, Motion Synth or GSDSP MMM?

Motion Synth ships an update every 4 months, and GSDSP MMM every 6 weeks. Most recently, Motion Synth was updated on October 13, 2026 and GSDSP MMM on September 17, 2026.

---

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