MIDI Scope vs MIDI Sniffer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MIDI Scope
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.
- Monitor MIDI activity
- Filter events by type, group, or channel
- Detailed event packet interpretation
- Raw packet data in decimal and hexadecimal
- iOS device compatibility
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MIDI Scope allows you to monitor MIDI activity using your iOS device. Features include the ability to filter events by individual type, continuous controller, or by group as well as MIDI channel. A comprehensive interpretation of each event packet is displayed. Raw packet data is shown in both decimal and hexadecimal formats. Please send feature requests and trouble reports to the support email listed on our web site. Please rate this app, there is a button on the settings page to make it easy.
MIDI Sniffer
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.
- 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
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This app allows you to capture incoming MIDI (Musical Instrument Digital Interface) messages, for example from external MIDI keyboards or accordions with a MIDI system. It is also possible to share the entire log as text or MIDI file, for example with app developers asking for a MIDI dump. Connect a MIDI interface to your Apple device, then connect your MIDI instrument to the interface. Features: - Capture MIDI messages in clear text and hexadecimal digits - Shows timestamps in microseconds precision - Share the log via text message or email - Export log as MIDI file - Establish MIDI Bluetooth LE connections - Different colors are used for better distinction - Apply filters to focus on events of interest
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | MIDI Scope | MIDI Sniffer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (20 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 20 — better | 1 |
| Update frequency | Every 9 months — better | Every 36 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Kinematic Systems | Sven Thoennissen |
Customer experience
MIDI Scope
MIDI Sniffer
In-app purchases
MIDI Scope
- Small$0.99
- Small$2.99
- Large$4.99
MIDI Sniffer
No in-app purchases
