# StreamByter vs GSDSP MMMm

The clearest difference is update cadence: GSDSP MMMm at every 6 weeks against StreamByter's every 3 months. GSDSP MMMm also leads on review sentiment (100% vs 91%) and iOS requirement (12.0 vs 14.5). On price, rating, 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.

On the App Store both sit at effectively the same score — 4.9 for StreamByter against 4.9 for GSDSP MMMm. Both are backed by a comparable volume of ratings — 27 and 14 respectively. Written reviews are what separate them: 91% of StreamByter's written reviews are positive against 100% of GSDSP MMMm's.

StreamByter ships an update every 3 months, GSDSP MMMm every 6 weeks. The most recent releases landed on October 9, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | StreamByter | GSDSP MMMm |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (27 ratings)](https://appshunter.io/ios/app/streambyter/id1398712641/reviews)** | [4.9 (14 ratings)](https://appshunter.io/ios/app/gsdsp-mmmm/id6450306205/reviews) |
| Number of ratings | **27** | 14 |
| Positive reviews | 90.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 7 MB | 44 MB |
| Requires iOS | 14.5 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Audeonic Apps](https://appshunter.io/developer/351607509) | [Gustav Scholda](https://appshunter.io/developer/1642323227) |

## What reviewers say

### StreamByter

[App page](https://appshunter.io/ios/app/streambyter/id1398712641)

Create custom MIDI effects with or without a graphical interface. This plugin extends MIDI processing for AU hosts or can be used standalone with CoreMIDI. It offers advanced programming concepts for complex MIDI manipulation.

**Highlights:** Custom MIDI effect creation, AU effect or standalone CoreMIDI use, Remap, filter, clone, and delay MIDI events, Conditional logic and loops for complex effects, Bi-directional linking with graphical sliders, Textual rules language for configuration

**Features:** Vision Pro support

**In-app purchases:** none


### GSDSP MMMm

[App page](https://appshunter.io/ios/app/gsdsp-mmmm/id6450306205)

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:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is StreamByter free?

StreamByter 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, StreamByter or GSDSP MMMm?

StreamByter is rated higher. StreamByter averages 4.9 out of 5 from 27 ratings, while GSDSP MMMm averages 4.9 from 14 ratings.

### Do StreamByter or GSDSP MMMm have ads?

Neither StreamByter nor GSDSP MMMm shows ads.

### Which is updated more often, StreamByter or GSDSP MMMm?

StreamByter ships an update every 3 months, and GSDSP MMMm every 6 weeks. Most recently, StreamByter was updated on October 9, 2026 and GSDSP MMMm on September 30, 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.*