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App name
Description
The Swiss army knife for your daily MIDI setup tasks. Connect a midi keyboard, MIDI sound expander or any other MIDI device to your iPad, iPhone or iPod touch by using the Apple USB camera adapter or any other adapter supported by Apple. Visualize and monitor MIDI messages sent by the connected MIDI device or send MIDI messages to those connected MIDI devices. This is a simple but helpful tool to find problems in your MIDI setup or simply to spot what kind of messages various MIDI devices are sending exactly. This app supports all hardware and software sources for MIDI, including Bluetooth LE MIDI ! Current Features: • Lists all CoreMIDI devices (i.e. attached MIDI accessories) and all so called "virtual CoreMIDI ports" (i.e. audio Apps) on your iPad / iPhone / iPod touch. • Displays incoming MIDI events of external MIDI hardware and local MIDI apps in real-time. • Send MIDI Note-On, Note-Off and Control Change messages by using the virtual midi keyboard, buttons and rotary knobs. • Virtual on-screen MIDI controls are fully configurable, so you may assign other midi controller numbers and more. • The virtual keyboard keys, rotary knobs and buttons automatically update to the values sent by connected MIDI devices. • Filter out MIDI events you are not interested in. • Copy MIDI events with one tap to the iOS clipboard, and paste them as text in another app like Mail. This app is free, and it does not contain any ads or other annoying things. Really! Anti-Spy Commitment: We take your privacy very seriously. None of our apps contain so called „spy” behaviors and we committed ourself to a very high privacy standard. midi wrench does not collect any information. For more information about our privacy commitment, read our „Privacy Policy for Mobile Apps”.
Needs MIDI out capabilities
by GiveMeAnthony on 2019/12/26 03:54
Only useful for iPad synth musicians. I want to MIDI out over USB or network. Don’t really care which, just make it happen and you’ve got a 5 star app.
Extremely useful
by Linnea G. on 2019/08/10 13:18
I wasn’t getting any sound from my midi keyboard. This helped me narrow down the reason to the speakers (output detected by system but no audio out). Will definitely be using this in the future.
Awesome
by Oldrumguy on 2019/07/24 21:38
Works like expected and then some pretty cool
Awesome for troubleshooting!
by boldstandard on 2019/07/21 01:32
This app is great for checking to see which midi cc values are being sent out by your keyboard controllers, making sure your iPad is receiving midi info you’re putting out, etc. a+
Important Tool
by MacManMark on 2018/10/31 01:21
Thanks for making this app. I will use it often.
Great for confirming midi signals
by fordjc on 2018/09/13 15:56
Thank you for this very handy app. i use this app to confirm midi flow whenever I am attempting to use midi as a controller with remote DAWs. saves a lot of time in solving the root cause of problems.
Works great!
by BjornLouser on 2017/06/30 17:07
Thanks for making this diagnostic tool.
New to MIDI or mixed up about setting up your IAA's? GET THIS!
by Maples Ex on 2017/06/04 17:36
Ok! I use alot of Synth IAA's... to do alot, but from a practical perspective I use C3B3 organ every week live at my church. I play it through Tonestack's rotary and scanner pedals, all on my phone. I use different apps with 3 different MIDI controller's, depending on what's needed. All I can say, is that it BLOWS MY MIND that this app is FREE! This simplifies the WHOLE operation, in everyway, all the time, and I'm no expert- I'm very happy- Thank You! Wow. Unsure? Knock it off and SIMPLIFY! just GET THIS APP. I'd even say it's necessary for IOS MIDI app-playing artists and sound folks alike- BJMc- Chicago.
Does what I need
by wkrasl on 2017/05/30 19:06
I am using several midi compatible apps on my iPad. Each time I come back to my piano to do something, the first thing I do is power up my piano, turn on Bluetooth on my iPad, and open MIDI Wrench to reset the iPad connection with my piano's MD-BT01 Bluetooth adapter. It works every time. I do see that this app does a lot more, but I don't need any feature other than making the connection. The only reason I am not giving this five stars is because, if I take a break (20-30 minutes?) without turning off either my Piano or my iPad (and my iPad is set to never auto-lock), I sometimes discover my connection has been disconnected. Then I have to reopen this app (still running in background) and reconnect. As long as this app is still running in the background, it should wake up often enough to keep that connection alive.
Great app
by Bb be on 2017/04/25 15:26
Very good app thank you. Very usefull. Volume sliders per midi channel.?
Crudebyte
by mrdogheadSHoGoAT on 2016/11/09 14:14
Why, Christian, do you refuse to maintain your apps? This is a very good, useful product that could be better still with the kind of active development most successful mobile-app developers embrace. You let JACK die for no obvious reason, and other apps just flounder once system versions change. If you worked on these apps - especially things with the potential to be useful to so many people doing music on this platform, like this and JACK - you might build communities that make the effort worth your while. Please consider regularly scheduling time to maintain your software.
Great app - please update for iOS 10!
by JesseBikman on 2016/11/05 17:26
Nothing wrong with the app, but a pop up occurs on my iPhone 7 saying that this app needs to be updated by the developers and hence may slowdown my phone. Love the app - hope you're reading this! Please update it for iOS 10!
Excellent!
by 40yr. Picker on 2016/10/31 21:22
An essential in this "Wild West" of mobile MIDI.
Ok app
by Dadson21 on 2016/02/09 05:04
Very few features
Works great
by Djembe Records on 2015/07/07 02:35
I wish the type was larger. Nice job, very useful. Thanks!
Awesome App!
by Kevius L. on 2015/05/15 04:29
It works!! Helped me diagnose a midi issue I had!!
Awesome
by Gogogolt on 2015/02/24 03:15
I didn't imagine myself ever needing this app..today I saved hours of trouble shooting running this app..very cool
This one worked, the other one didn't
by David NL on 2013/03/01 21:48
Simple as that. Writing a program to monitor MIDI data flow in a network doesn't seem like it should be like rocket science (although I could be wrong about that; it's not my area), so I expected the other monitor I tried (MIDI Monitor) to work. It crashed almost the instant MIDI data started to flow, over and over again. MIDI Wrench listened to the network, showed me what was happening, and stayed alive. That's all I needed it to do. Thanks for creating a product that does what it says! The rest of the interface is attractive and easy to use. The control knobs pop up to full-screen size for ease of manipulation and feature numeric readouts so you know exactly what MIDI value your setting them at. Basic ON/OFF buttons for pedals and an All Notes Off button to deal with "stuck keys."
Does what I need
by wkrasl on 2017/05/30 19:06
I am using several midi compatible apps on my iPad. Each time I come back to my piano to do something, the first thing I do is power up my piano, turn on Bluetooth on my iPad, and open MIDI Wrench to reset the iPad connection with my piano's MD-BT01 Bluetooth adapter. It works every time. I do see that this app does a lot more, but I don't need any feature other than making the connection. The only reason I am not giving this five stars is because, if I take a break (20-30 minutes?) without turning off either my Piano or my iPad (and my iPad is set to never auto-lock), I sometimes discover my connection has been disconnected. Then I have to reopen this app (still running in background) and reconnect. As long as this app is still running in the background, it should wake up often enough to keep that connection alive.
New to MIDI or mixed up about setting up your IAA's? GET THIS!
by Maples Ex on 2017/06/04 17:36
Ok! I use alot of Synth IAA's... to do alot, but from a practical perspective I use C3B3 organ every week live at my church. I play it through Tonestack's rotary and scanner pedals, all on my phone. I use different apps with 3 different MIDI controller's, depending on what's needed. All I can say, is that it BLOWS MY MIND that this app is FREE! This simplifies the WHOLE operation, in everyway, all the time, and I'm no expert- I'm very happy- Thank You! Wow. Unsure? Knock it off and SIMPLIFY! just GET THIS APP. I'd even say it's necessary for IOS MIDI app-playing artists and sound folks alike- BJMc- Chicago.
Extremely useful
by Linnea G. on 2019/08/10 13:18
I wasn’t getting any sound from my midi keyboard. This helped me narrow down the reason to the speakers (output detected by system but no audio out). Will definitely be using this in the future.
Awesome for troubleshooting!
by boldstandard on 2019/07/21 01:32
This app is great for checking to see which midi cc values are being sent out by your keyboard controllers, making sure your iPad is receiving midi info you’re putting out, etc. a+
Great for confirming midi signals
by fordjc on 2018/09/13 15:56
Thank you for this very handy app. i use this app to confirm midi flow whenever I am attempting to use midi as a controller with remote DAWs. saves a lot of time in solving the root cause of problems.
Important Tool
by MacManMark on 2018/10/31 01:21
Thanks for making this app. I will use it often.
Works great!
by BjornLouser on 2017/06/30 17:07
Thanks for making this diagnostic tool.
Awesome
by Oldrumguy on 2019/07/24 21:38
Works like expected and then some pretty cool
Great app
by Bb be on 2017/04/25 15:26
Very good app thank you. Very usefull. Volume sliders per midi channel.?
Needs MIDI out capabilities
by GiveMeAnthony on 2019/12/26 03:54
Only useful for iPad synth musicians. I want to MIDI out over USB or network. Don’t really care which, just make it happen and you’ve got a 5 star app.
This one worked, the other one didn't
by David NL on 2013/03/01 21:48
Simple as that. Writing a program to monitor MIDI data flow in a network doesn't seem like it should be like rocket science (although I could be wrong about that; it's not my area), so I expected the other monitor I tried (MIDI Monitor) to work. It crashed almost the instant MIDI data started to flow, over and over again. MIDI Wrench listened to the network, showed me what was happening, and stayed alive. That's all I needed it to do. Thanks for creating a product that does what it says! The rest of the interface is attractive and easy to use. The control knobs pop up to full-screen size for ease of manipulation and feature numeric readouts so you know exactly what MIDI value your setting them at. Basic ON/OFF buttons for pedals and an All Notes Off button to deal with "stuck keys."
Crudebyte
by mrdogheadSHoGoAT on 2016/11/09 14:14
Why, Christian, do you refuse to maintain your apps? This is a very good, useful product that could be better still with the kind of active development most successful mobile-app developers embrace. You let JACK die for no obvious reason, and other apps just flounder once system versions change. If you worked on these apps - especially things with the potential to be useful to so many people doing music on this platform, like this and JACK - you might build communities that make the effort worth your while. Please consider regularly scheduling time to maintain your software.
Great app - please update for iOS 10!
by JesseBikman on 2016/11/05 17:26
Nothing wrong with the app, but a pop up occurs on my iPhone 7 saying that this app needs to be updated by the developers and hence may slowdown my phone. Love the app - hope you're reading this! Please update it for iOS 10!
Awesome
by Gogogolt on 2015/02/24 03:15
I didn't imagine myself ever needing this app..today I saved hours of trouble shooting running this app..very cool
Works great
by Djembe Records on 2015/07/07 02:35
I wish the type was larger. Nice job, very useful. Thanks!
Ok app
by Dadson21 on 2016/02/09 05:04
Very few features
Awesome App!
by Kevius L. on 2015/05/15 04:29
It works!! Helped me diagnose a midi issue I had!!
Excellent!
by 40yr. Picker on 2016/10/31 21:22
An essential in this "Wild West" of mobile MIDI.
Rating Trends
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
All Versions
4.0
48 total
 5
40
 4
5
 3
1
 2
0
 1
2
Current Version (1.4)
4.0
24 total
 5
19
 4
2
 3
1
 2
0
 1
2
Version History
More...
Screenshots
Search Visibility
App name
Description
The Swiss army knife for your daily MIDI setup tasks. Connect a midi keyboard, MIDI sound expander or any other MIDI device to your iPad, iPhone or iPod touch by using the Apple USB camera adapter or any other adapter supported by Apple. Visualize and monitor MIDI messages sent by the connected MIDI device or send MIDI messages to those connected MIDI devices. This is a simple but helpful tool to find problems in your MIDI setup or simply to spot what kind of messages various MIDI devices are sending exactly. This app supports all hardware and software sources for MIDI, including Bluetooth LE MIDI ! Current Features: • Lists all CoreMIDI devices (i.e. attached MIDI accessories) and all so called "virtual CoreMIDI ports" (i.e. audio Apps) on your iPad / iPhone / iPod touch. • Displays incoming MIDI events of external MIDI hardware and local MIDI apps in real-time. • Send MIDI Note-On, Note-Off and Control Change messages by using the virtual midi keyboard, buttons and rotary knobs. • Virtual on-screen MIDI controls are fully configurable, so you may assign other midi controller numbers and more. • The virtual keyboard keys, rotary knobs and buttons automatically update to the values sent by connected MIDI devices. • Filter out MIDI events you are not interested in. • Copy MIDI events with one tap to the iOS clipboard, and paste them as text in another app like Mail. This app is free, and it does not contain any ads or other annoying things. Really! Anti-Spy Commitment: We take your privacy very seriously. None of our apps contain so called „spy” behaviors and we committed ourself to a very high privacy standard. midi wrench does not collect any information. For more information about our privacy commitment, read our „Privacy Policy for Mobile Apps”.
Needs MIDI out capabilities
by GiveMeAnthony on 2019/12/26 03:54
Only useful for iPad synth musicians. I want to MIDI out over USB or network. Don’t really care which, just make it happen and you’ve got a 5 star app.
Extremely useful
by Linnea G. on 2019/08/10 13:18
I wasn’t getting any sound from my midi keyboard. This helped me narrow down the reason to the speakers (output detected by system but no audio out). Will definitely be using this in the future.
Awesome
by Oldrumguy on 2019/07/24 21:38
Works like expected and then some pretty cool
Awesome for troubleshooting!
by boldstandard on 2019/07/21 01:32
This app is great for checking to see which midi cc values are being sent out by your keyboard controllers, making sure your iPad is receiving midi info you’re putting out, etc. a+
Important Tool
by MacManMark on 2018/10/31 01:21
Thanks for making this app. I will use it often.
Great for confirming midi signals
by fordjc on 2018/09/13 15:56
Thank you for this very handy app. i use this app to confirm midi flow whenever I am attempting to use midi as a controller with remote DAWs. saves a lot of time in solving the root cause of problems.
Works great!
by BjornLouser on 2017/06/30 17:07
Thanks for making this diagnostic tool.
New to MIDI or mixed up about setting up your IAA's? GET THIS!
by Maples Ex on 2017/06/04 17:36
Ok! I use alot of Synth IAA's... to do alot, but from a practical perspective I use C3B3 organ every week live at my church. I play it through Tonestack's rotary and scanner pedals, all on my phone. I use different apps with 3 different MIDI controller's, depending on what's needed. All I can say, is that it BLOWS MY MIND that this app is FREE! This simplifies the WHOLE operation, in everyway, all the time, and I'm no expert- I'm very happy- Thank You! Wow. Unsure? Knock it off and SIMPLIFY! just GET THIS APP. I'd even say it's necessary for IOS MIDI app-playing artists and sound folks alike- BJMc- Chicago.
Does what I need
by wkrasl on 2017/05/30 19:06
I am using several midi compatible apps on my iPad. Each time I come back to my piano to do something, the first thing I do is power up my piano, turn on Bluetooth on my iPad, and open MIDI Wrench to reset the iPad connection with my piano's MD-BT01 Bluetooth adapter. It works every time. I do see that this app does a lot more, but I don't need any feature other than making the connection. The only reason I am not giving this five stars is because, if I take a break (20-30 minutes?) without turning off either my Piano or my iPad (and my iPad is set to never auto-lock), I sometimes discover my connection has been disconnected. Then I have to reopen this app (still running in background) and reconnect. As long as this app is still running in the background, it should wake up often enough to keep that connection alive.
Great app
by Bb be on 2017/04/25 15:26
Very good app thank you. Very usefull. Volume sliders per midi channel.?
Crudebyte
by mrdogheadSHoGoAT on 2016/11/09 14:14
Why, Christian, do you refuse to maintain your apps? This is a very good, useful product that could be better still with the kind of active development most successful mobile-app developers embrace. You let JACK die for no obvious reason, and other apps just flounder once system versions change. If you worked on these apps - especially things with the potential to be useful to so many people doing music on this platform, like this and JACK - you might build communities that make the effort worth your while. Please consider regularly scheduling time to maintain your software.
Great app - please update for iOS 10!
by JesseBikman on 2016/11/05 17:26
Nothing wrong with the app, but a pop up occurs on my iPhone 7 saying that this app needs to be updated by the developers and hence may slowdown my phone. Love the app - hope you're reading this! Please update it for iOS 10!
Excellent!
by 40yr. Picker on 2016/10/31 21:22
An essential in this "Wild West" of mobile MIDI.
Ok app
by Dadson21 on 2016/02/09 05:04
Very few features
Works great
by Djembe Records on 2015/07/07 02:35
I wish the type was larger. Nice job, very useful. Thanks!
Awesome App!
by Kevius L. on 2015/05/15 04:29
It works!! Helped me diagnose a midi issue I had!!
Awesome
by Gogogolt on 2015/02/24 03:15
I didn't imagine myself ever needing this app..today I saved hours of trouble shooting running this app..very cool
This one worked, the other one didn't
by David NL on 2013/03/01 21:48
Simple as that. Writing a program to monitor MIDI data flow in a network doesn't seem like it should be like rocket science (although I could be wrong about that; it's not my area), so I expected the other monitor I tried (MIDI Monitor) to work. It crashed almost the instant MIDI data started to flow, over and over again. MIDI Wrench listened to the network, showed me what was happening, and stayed alive. That's all I needed it to do. Thanks for creating a product that does what it says! The rest of the interface is attractive and easy to use. The control knobs pop up to full-screen size for ease of manipulation and feature numeric readouts so you know exactly what MIDI value your setting them at. Basic ON/OFF buttons for pedals and an All Notes Off button to deal with "stuck keys."
Does what I need
by wkrasl on 2017/05/30 19:06
I am using several midi compatible apps on my iPad. Each time I come back to my piano to do something, the first thing I do is power up my piano, turn on Bluetooth on my iPad, and open MIDI Wrench to reset the iPad connection with my piano's MD-BT01 Bluetooth adapter. It works every time. I do see that this app does a lot more, but I don't need any feature other than making the connection. The only reason I am not giving this five stars is because, if I take a break (20-30 minutes?) without turning off either my Piano or my iPad (and my iPad is set to never auto-lock), I sometimes discover my connection has been disconnected. Then I have to reopen this app (still running in background) and reconnect. As long as this app is still running in the background, it should wake up often enough to keep that connection alive.
New to MIDI or mixed up about setting up your IAA's? GET THIS!
by Maples Ex on 2017/06/04 17:36
Ok! I use alot of Synth IAA's... to do alot, but from a practical perspective I use C3B3 organ every week live at my church. I play it through Tonestack's rotary and scanner pedals, all on my phone. I use different apps with 3 different MIDI controller's, depending on what's needed. All I can say, is that it BLOWS MY MIND that this app is FREE! This simplifies the WHOLE operation, in everyway, all the time, and I'm no expert- I'm very happy- Thank You! Wow. Unsure? Knock it off and SIMPLIFY! just GET THIS APP. I'd even say it's necessary for IOS MIDI app-playing artists and sound folks alike- BJMc- Chicago.
Extremely useful
by Linnea G. on 2019/08/10 13:18
I wasn’t getting any sound from my midi keyboard. This helped me narrow down the reason to the speakers (output detected by system but no audio out). Will definitely be using this in the future.
Awesome for troubleshooting!
by boldstandard on 2019/07/21 01:32
This app is great for checking to see which midi cc values are being sent out by your keyboard controllers, making sure your iPad is receiving midi info you’re putting out, etc. a+
Great for confirming midi signals
by fordjc on 2018/09/13 15:56
Thank you for this very handy app. i use this app to confirm midi flow whenever I am attempting to use midi as a controller with remote DAWs. saves a lot of time in solving the root cause of problems.
Important Tool
by MacManMark on 2018/10/31 01:21
Thanks for making this app. I will use it often.
Works great!
by BjornLouser on 2017/06/30 17:07
Thanks for making this diagnostic tool.
Awesome
by Oldrumguy on 2019/07/24 21:38
Works like expected and then some pretty cool
Great app
by Bb be on 2017/04/25 15:26
Very good app thank you. Very usefull. Volume sliders per midi channel.?
Needs MIDI out capabilities
by GiveMeAnthony on 2019/12/26 03:54
Only useful for iPad synth musicians. I want to MIDI out over USB or network. Don’t really care which, just make it happen and you’ve got a 5 star app.
This one worked, the other one didn't
by David NL on 2013/03/01 21:48
Simple as that. Writing a program to monitor MIDI data flow in a network doesn't seem like it should be like rocket science (although I could be wrong about that; it's not my area), so I expected the other monitor I tried (MIDI Monitor) to work. It crashed almost the instant MIDI data started to flow, over and over again. MIDI Wrench listened to the network, showed me what was happening, and stayed alive. That's all I needed it to do. Thanks for creating a product that does what it says! The rest of the interface is attractive and easy to use. The control knobs pop up to full-screen size for ease of manipulation and feature numeric readouts so you know exactly what MIDI value your setting them at. Basic ON/OFF buttons for pedals and an All Notes Off button to deal with "stuck keys."
Crudebyte
by mrdogheadSHoGoAT on 2016/11/09 14:14
Why, Christian, do you refuse to maintain your apps? This is a very good, useful product that could be better still with the kind of active development most successful mobile-app developers embrace. You let JACK die for no obvious reason, and other apps just flounder once system versions change. If you worked on these apps - especially things with the potential to be useful to so many people doing music on this platform, like this and JACK - you might build communities that make the effort worth your while. Please consider regularly scheduling time to maintain your software.
Great app - please update for iOS 10!
by JesseBikman on 2016/11/05 17:26
Nothing wrong with the app, but a pop up occurs on my iPhone 7 saying that this app needs to be updated by the developers and hence may slowdown my phone. Love the app - hope you're reading this! Please update it for iOS 10!
Awesome
by Gogogolt on 2015/02/24 03:15
I didn't imagine myself ever needing this app..today I saved hours of trouble shooting running this app..very cool
Works great
by Djembe Records on 2015/07/07 02:35
I wish the type was larger. Nice job, very useful. Thanks!
Ok app
by Dadson21 on 2016/02/09 05:04
Very few features
Awesome App!
by Kevius L. on 2015/05/15 04:29
It works!! Helped me diagnose a midi issue I had!!
Excellent!
by 40yr. Picker on 2016/10/31 21:22
An essential in this "Wild West" of mobile MIDI.
Rating Trends
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
All Versions
4.0
48 total
 5
40
 4
5
 3
1
 2
0
 1
2
Current Version (1.4)
4.0
24 total
 5
19
 4
2
 3
1
 2
0
 1
2
Version History
More...