# MIDI Scope vs MIDI Sniffer

The clearest difference is in-app purchases: MIDI Sniffer at none against MIDI Scope's 3. MIDI Sniffer also leads on rating (5.0 vs 4.8) and iOS requirement (15.6 vs 17.0). MIDI Scope's advantage is update cadence (every 9 months vs every 36 months) and ratings volume (20 vs 1). On price, ads, monetization model and device support there is nothing between them.

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

MIDI Sniffer holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: MIDI Scope has 20 ratings behind it against 1, so its average is the more settled of the two.

MIDI Scope ships an update every 9 months, MIDI Sniffer every 36 months. The most recent releases landed on September 9, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | MIDI Scope | MIDI Sniffer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (20 ratings)](https://appshunter.io/ios/app/midi-scope/id1185667452/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/midi-sniffer/id1309533283/reviews)** |
| Number of ratings | **20** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 36 months |
| Monetization | Free | Free |
| Size | 1 MB | 1 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kinematic Systems](https://appshunter.io/developer/1162866262) | [Sven Thoennissen](https://appshunter.io/developer/595221583) |

## 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 |


### MIDI Sniffer

[App page](https://appshunter.io/ios/app/midi-sniffer/id1309533283)

Capture and share MIDI messages from external instruments. View logs in text or hex with precise timestamps. Export as MIDI files or share via text/email. Supports Bluetooth LE connections and message filtering.

**Highlights:** Capture MIDI messages (text/hex), Microsecond precision timestamps, Share logs via text/email, Export logs as MIDI files, Bluetooth LE MIDI connections, Message filtering, Color-coded messages

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MIDI Scope free?

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

### Is MIDI Sniffer free?

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

### Which has better reviews, MIDI Scope or MIDI Sniffer?

MIDI Sniffer is rated higher. MIDI Scope averages 4.8 out of 5 from 20 ratings, while MIDI Sniffer averages 5.0 from 1 ratings.

### Do MIDI Scope or MIDI Sniffer have ads?

Neither MIDI Scope nor MIDI Sniffer shows ads.

### Which is updated more often, MIDI Scope or MIDI Sniffer?

MIDI Scope ships an update every 9 months, and MIDI Sniffer every 36 months. Most recently, MIDI Scope was updated on September 9, 2026 and MIDI Sniffer on September 8, 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.*