# GSDSP MMMm vs jAmp Bleep

The clearest difference is monetization model: GSDSP MMMm at free against jAmp Bleep's paid. GSDSP MMMm also leads on review sentiment (100% vs 89%) and iOS requirement (12.0 vs 14.0). jAmp Bleep's advantage is update cadence (every 4 days vs every 6 weeks). 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.

GSDSP MMMm holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 14 and 30 respectively. Written reviews point the same way: 100% of GSDSP MMMm's written reviews are positive against 89% of jAmp Bleep's.

GSDSP MMMm ships an update every 6 weeks, jAmp Bleep every 4 days. The most recent releases landed on September 11, 2026 and August 31, 2026 respectively.

## The numbers

| Metric | GSDSP MMMm | jAmp Bleep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (14 ratings)](https://appshunter.io/ios/app/gsdsp-mmmm/id6450306205/reviews)** | [4.7 (30 ratings)](https://appshunter.io/ios/app/jamp-bleep/id6478390576/reviews) |
| Number of ratings | 14 | **30** |
| Positive reviews | **100.0% of reviews** | 88.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Monetization | **Free** | Paid |
| Size | 44 MB | 13 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Gustav Scholda](https://appshunter.io/developer/1642323227) | [Jan Maes](https://appshunter.io/developer/1550506252) |

## What reviewers say

### 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


### jAmp Bleep

[App page](https://appshunter.io/ios/app/jamp-bleep/id6478390576)

This app is an AUv3 audio plugin that recreates the Bleep Bloop Machine. It offers MIDI control for its knobs, allowing users to manipulate sound and create music.

**Highlights:** AUv3 plugin, Bleep Bloop Machine remake, MIDI knob control, Sound manipulation

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GSDSP MMMm free?

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

### Is jAmp Bleep free?

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

### Which has better reviews, GSDSP MMMm or jAmp Bleep?

GSDSP MMMm is rated higher. GSDSP MMMm averages 4.9 out of 5 from 14 ratings, while jAmp Bleep averages 4.7 from 30 ratings.

### Do GSDSP MMMm or jAmp Bleep have ads?

Neither GSDSP MMMm nor jAmp Bleep shows ads.

### Which is updated more often, GSDSP MMMm or jAmp Bleep?

GSDSP MMMm ships an update every 6 weeks, and jAmp Bleep every 4 days. Most recently, GSDSP MMMm was updated on September 11, 2026 and jAmp Bleep on August 31, 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.*