MIDI Check - Diagnose Tool
Not in any tracked top chart right now.
Updated 25 Oct 2026 · rankings refresh through the day
DeveloperDejaWorks LTD
CategoryMusic
Price1.99 USD
Released
Rating★ 4.0 (4)
Version2.0.8
Age rating4+
First seen by us
24 Oct 2026
Rating
4.0 ★
4 ratings
Measured
MIDI Check - Diagnose Tool on the App Store
App details
App ID
1235759917
Publisher
DejaWorks LTD
On the store since
May 2017
9 years on the store
Minimum OS
iOS 10.3+
iPhone 5 and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
37 MB
Also listed in
Productivity
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.0 ★
4 ratings
Measured
Ratings
4
Measured
About MIDI Check - Diagnose Tool
*Diagnose The Problem & Find the Solution*
Current Features:
+ See/detect, hardware/virtual active MIDI connections.
+ See all incoming messages.
+ Send test notes on/off and control messages.
+ MIDI Channel filter: Eliminate messages comes from unwanted MIDI channels.
+ MIDI Message filter: Eliminate unwanted messages (e.g. Note on, Note off, Pitch wheel etc.)
+ MIDI System Exclusive filter: Eliminate MIDI Clock and many other unwanted MIDI messages.
+ MIDI Delta-Time Added: See the time spent between messages
+ Record Incoming MIDI messages in background mode
+ 100% vectoriel cristal clear gorgeous user interface.
+ Slide the glass through the face, activate the desired filter with a gesture.
**NOTE**
Yamaha Bluetooth MD-BT01 users -> According to Yamaha user manual; all MIDI related application should be closed before bluetooth midi connection. Run the MIDI Check after connection established. If not you'll not be able to see the Yamaha midi connection on the app. This is not an application's issue. Because Yamaha use own BT protocol.
Upcoming Features:
- Music keyboard improvement.
- Custom preset message send possibility.
Current Features:
+ See/detect, hardware/virtual active MIDI connections.
+ See all incoming messages.
+ Send test notes on/off and control messages.
+ MIDI Channel filter: Eliminate messages comes from unwanted MIDI channels.
+ MIDI Message filter: Eliminate unwanted messages (e.g. Note on, Note off, Pitch wheel etc.)
+ MIDI System Exclusive filter: Eliminate MIDI Clock and many other unwanted MIDI messages.
+ MIDI Delta-Time Added: See the time spent between messages
+ Record Incoming MIDI messages in background mode
+ 100% vectoriel cristal clear gorgeous user interface.
+ Slide the glass through the face, activate the desired filter with a gesture.
**NOTE**
Yamaha Bluetooth MD-BT01 users -> According to Yamaha user manual; all MIDI related application should be closed before bluetooth midi connection. Run the MIDI Check after connection established. If not you'll not be able to see the Yamaha midi connection on the app. This is not an application's issue. Because Yamaha use own BT protocol.
Upcoming Features:
- Music keyboard improvement.
- Custom preset message send possibility.
Latest updates
2.0.8
This update covers some major changes.
+Dark mode is available for iOS13 users.
+UI Optimisation: Especially for iPhone X and other devices.
+Send MIDI message: To all selected (or single) output destinations.
+Receive MIDI message: From all selected (or single) input sources
+Bug fix: No more crash while incoming MIDI messages.
+Timestamp is added, Delta time is removed.
+MIDI Send tab is renewed.
+Now everything is faster than before.