# MIDI Scope vs EXPANSION EXPLORER

The clearest difference is review sentiment: MIDI Scope at 100% against EXPANSION EXPLORER's 25%. MIDI Scope also leads on rating (4.8 vs 3.0) and ratings volume (20 vs 2). EXPANSION EXPLORER's advantage is in-app purchases (none vs 3). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. MIDI Scope sells 3 one-off in-app purchases. EXPANSION EXPLORER asks for nothing beyond the download.

MIDI Scope holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: MIDI Scope has 20 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of MIDI Scope's written reviews are positive against 25% of EXPANSION EXPLORER's.

MIDI Scope ships an update every 9 months, EXPANSION EXPLORER every 5 months. The most recent releases landed on September 9, 2026 and September 1, 2026 respectively.

## The numbers

| Metric | MIDI Scope | EXPANSION EXPLORER |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (20 ratings)](https://appshunter.io/ios/app/midi-scope/id1185667452/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/expansion-explorer/id6477550974/reviews) |
| Number of ratings | **20** | 2 |
| Positive reviews | **100.0% of reviews** | 25.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 1 MB | 154 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kinematic Systems](https://appshunter.io/developer/1162866262) | [Yamaha Corporation](https://appshunter.io/developer/353469356) |

## What reviewers say

### MIDI Scope

[App page](https://appshunter.io/ios/app/midi-scope/id1185667452)

Monitor MIDI activity on your iOS device. Filter events by type, group, or channel, with detailed packet interpretation in decimal and hexadecimal. Send feedback directly to the developer.

**Highlights:** Monitor MIDI activity, Filter events by type, group, or channel, Detailed event packet interpretation, Raw packet data in decimal and hexadecimal, iOS device compatibility

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small | $0.99 | one-time |
| Small | $2.99 | one-time |
| Large | $4.99 | one-time |


### EXPANSION EXPLORER

[App page](https://appshunter.io/ios/app/expansion-explorer/id6477550974)

Discover, install, and manage additional content for compatible Yamaha arranger workstations. Explore a library of free Voices, Styles, and Multi Pads, and even get style recommendations based on audio files. Preview content before installing it directly to your instrument.

**Highlights:** Discover and install expansion content, Search and filter by country, tempo, beat, Analyze audio files for style recommendations, Pre-listen to content before installation, Wireless or USB installation, Create favorite content lists, Light and dark mode options

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MIDI Scope free?

MIDI Scope is free to download, with in-app purchases available.

### Is EXPANSION EXPLORER free?

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

### Which has better reviews, MIDI Scope or EXPANSION EXPLORER?

MIDI Scope is rated higher. MIDI Scope averages 4.8 out of 5 from 20 ratings, while EXPANSION EXPLORER averages 3.0 from 2 ratings.

### Do MIDI Scope or EXPANSION EXPLORER have ads?

Neither MIDI Scope nor EXPANSION EXPLORER shows ads.

### Which is updated more often, MIDI Scope or EXPANSION EXPLORER?

MIDI Scope ships an update every 9 months, and EXPANSION EXPLORER every 5 months. Most recently, MIDI Scope was updated on September 9, 2026 and EXPANSION EXPLORER on September 1, 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.*