# MIDISpy vs Mozaic Plugin Workshop

The clearest difference is price: MIDISpy at Free against Mozaic Plugin Workshop's $1.99. MIDISpy also leads on update cadence (every 3 weeks vs every 3 months). Mozaic Plugin Workshop's advantage is rating (5.0 vs 4.0) and review sentiment (95% vs 71%). On ads, in-app purchases and iOS requirement there is nothing between them.

MIDISpy is free to download; Mozaic Plugin Workshop costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mozaic Plugin Workshop holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Mozaic Plugin Workshop has 81 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 71% of MIDISpy's written reviews are positive against 95% of Mozaic Plugin Workshop's.

MIDISpy ships an update every 3 weeks, Mozaic Plugin Workshop every 3 months. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | MIDISpy | Mozaic Plugin Workshop |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/midispy/id1444652196/reviews) | **[5.0 (81 ratings)](https://appshunter.io/ios/app/mozaic-plugin-workshop/id1457962653/reviews)** |
| Number of ratings | 4 | **81** |
| Positive reviews | 71.4% of reviews | **94.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | **Free** | Paid |
| Size | 6 MB | 3 MB |
| Requires iOS | **11.0** | 12.4 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kai Aras](https://appshunter.io/developer/370820899) | [Bram Bos](https://appshunter.io/developer/325340444) |

## What reviewers say

### MIDISpy

[App page](https://appshunter.io/ios/app/midispy/id1444652196)

This utility helps monitor MIDI connections across various platforms. It offers basic filtering for different MIDI message types and supports multiple connectivity options.

**Highlights:** Standalone and AUv3 support, Basic message filtering, Inter-App MIDI, USB MIDI, Bluetooth MIDI, Network MIDI

**Features:** macOS Compatibility

**In-app purchases:** none


### Mozaic Plugin Workshop

[App page](https://appshunter.io/ios/app/mozaic-plugin-workshop/id1457962653)

Design and build your own custom MIDI plugins for music production. This tool offers a simple yet powerful scripting language and pre-built components to create filters, sequencers, and generative music tools. It integrates with AUv3 MIDI hosts for seamless workflow.

**Highlights:** Custom MIDI plugin creation, Easy-to-learn scripting language, Generative music tools, MIDI filters and sequencers, AUv3 support, Tilt sensor integration, Built-in script editor

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MIDISpy free?

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

### Is Mozaic Plugin Workshop free?

Mozaic Plugin Workshop costs $1.99, with no in-app purchases.

### Which has better reviews, MIDISpy or Mozaic Plugin Workshop?

Mozaic Plugin Workshop is rated higher. MIDISpy averages 4.0 out of 5 from 4 ratings, while Mozaic Plugin Workshop averages 5.0 from 81 ratings.

### Do MIDISpy or Mozaic Plugin Workshop have ads?

Neither MIDISpy nor Mozaic Plugin Workshop shows ads.

### Which is updated more often, MIDISpy or Mozaic Plugin Workshop?

MIDISpy ships an update every 3 weeks, and Mozaic Plugin Workshop every 3 months. Most recently, MIDISpy was updated on September 30, 2026 and Mozaic Plugin Workshop on October 2, 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.*