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midimittr

by Matthias Frick

iPhone · iPad

Active Last checked 5 Aug 2026

Quick verdict

What it is
Store information collected; independent summary not yet available.
At a glance
  • Free to download

Categories and search queries

Official categories

AppCorpus categories

Key functions

Function Availability Access Scope Evidence
Free app Yes Free Store published

Screens

App Store

6 store screenshots

midimittr ipad screenshot 1
midimittr ipad screenshot 2
midimittr ipad screenshot 3

Pricing & paywalls

App Store

Shown for US

  • Free

Ratings & reviews

App Store

Shown for US

4.6 52 ratings · App Store

  1. 5/5Still works on iPhone/iPad

    For connecting to macOS, this is still quite awesome. With two devices connected -- you have to start midimittr on iOS first on both devices -- only one seems to get MIDI back. But it's fine and more convenient than the Apple solution using audio/midi setup. Thanks Matthias for keeping this working! No small task for sure.

    Music This! · 5 Aug 2026

  2. 1/5Full of great ideas, not bad execution

    The only reason I gave it one star is in hopes that the developer sees it. It’s really a great app. I have just had a problem where the app keeps giving me pop-ups asking me to turn on Bluetooth to make a network connection, while I’m not using it. It all started happening when I added the widget to the widget list. Since then, it pops up every two or three minutes. Removing the widget and turning off background functions hasn’t resolved it. It could honestly be ipados, since crapple is now becoming known as the company which once made reliable devices - while Steve was alive. I’m about to uninstall the app as the pop-up is extremely frustrating. Again, I haven’t had any other problems really. Although, I honestly haven’t used it a ton (It just isn’t extremely useful in my workflow).

    Ihatehavingtomakeareviewname · 5 Aug 2026

  3. 5/5Yes! This is the one!

    It was a bit of a hassle to get USB set up on Windows (requires additional installation of loopMIDI and a specific version of iTunes), but once it is set up, it runs flawlessly with very little latency. I am able to route my Novation Circuit as a MIDI controller through Reaper and use it to control almost anything on my iPad! Major kudos to the developer for releasing this as free software.

    BYUkid14 · 5 Aug 2026

  4. 5/5Works like Ableton’s midi preferences

    This was the only app that successfully let me bridge USB midi between two pieces of audio equipment. Basically I plugged my digitakt and Korg SQ-1 into my phone via a lightning USB hub and this app showed me the same stuff I would see in abletons midi preferences. Now I can use my digitakt as a 2 channel midi to CV converter! Thanks guys 💙

    mattnielsen23 · 5 Aug 2026

  5. 5/5A life saviour!

    The capabilities of this little app are amazing. My Mac wouldn't receive MIDI events from my Roland FP-30 via Bluetooth, and I was about to give up when I found this free little gem. I connect my phone to the keyboard instead, and then routed it's signal back to the MacBook. It works surprisingly well! Thank you for creating this.

    niieani · 5 Aug 2026

Privacy & accessibility

App Store

Privacy

  • Data Not Collected Developer declared

Accessibility

No accessibility labels collected yet.

Versions

App Store

  • 1.7

    The midimittr USB desktop companion now supports Inter-Device Audio and MIDI over Bluetooth functionality on OSX 10.11. Connect your device to your mac and use it as an external audio input source by enabling it in the new OSX Audio window. Get the app from: http://www.s-r-n.de/midimittr - minor bugfixes and improvements

  • 1.7.1

    - Fixed an issue where USB connections would not resume when the app returns from suspend (after the background timer expired) If you like and use this app, feel free to leave some stars and a review.

  • 1.7.2

    Thanks to Peter for reporting a bug where the app would crash for first-time users on iOS 10 due to the lack of a description about why we need to access bluetooth. If you have any feature requests or bug reports, send an email to [email protected] and I'll try and make this app even better. As always, I am happy to accept donations for this free app through http://www.s-r-n.de/midile/

  • 1.8

    Improved persistance of selected destinations/sources across app restarts. Previously selected states of other apps will now be completely restored.

  • 1.8.1

    Updated for iPhone X. Minimum iOS version raised to 8.0.

  • 2.0

    What better way to start the new year than with a refreshed app! midimittr was known for its simplicity and I took some time to make it even simpler and easier to navigate. - Complete UI refresh: navigating the App is now simpler and more immediate - Added notifications when USB is connected - Added Settings to iOS Settings and made it accessible from the app - Added page to see USB connection status - Most of the App is now written in Swift - Increased launch performance - midimittr is now open source midimittr is free and developed in my spare time. If you enjoy this update, consider a small donation through www.s-r-n.de/midimittr.

  • 2.0.1

    What better way to start the new year than with a refreshed app! midimittr was known for its simplicity and I took some time to make it even simpler and easier to navigate. 2.0.1: - Fixed missing Launch Screen image 2.0: - Complete UI refresh: navigating the App is now simpler and more immediate - Added notifications when USB is connected - Added Settings to iOS Settings and made it accessible from the app - Added page to see USB connection status - Most of the App is now written in Swift - App is significantly smaller - Increased launch performance - midimittr is now open source midimittr is free and developed in my spare time. If you enjoy this update, consider a small donation through www.s-r-n.de/midimittr.

  • 2.0.10

    Introducing the "midimittr" Today Widget for all users on iOS 10 or higher. Especially useful for iPad OS 13 users who'd like to initiate MIDI over Bluetooth connections straight from the Homescreen. Fixes: Fixed a bug where Bluetooth MIDI Views would not update correctly if the connection state changed while off screen.

  • 2.0.2

    What better way to start the new year than with a refreshed app! midimittr was known for its simplicity and I took some time to make it even simpler and easier to navigate. 2.0.2: - Fixed a layout issue on iOS 9 and 10 2.0.1: - Fixed missing Launch Screen image 2.0: - Complete UI refresh: navigating the App is now simpler and more immediate - Added notifications when USB is connected - Added Settings to iOS Settings and made it accessible from the app - Added page to see USB connection status - Most of the App is now written in Swift - App is significantly smaller - Increased launch performance - midimittr is now open source midimittr is free and developed in my spare time. If you enjoy this update, consider a small donation through www.s-r-n.de/midimittr.

  • 2.0.3

    - Fixed an issue when rotating between portrait and landscape mode. Consider a small donation via http://www.s-r-n.de/midimittr/ or through the open-source page for midimittr on http://github.com/sieren/midimittr

  • 2.0.4

    Updated for iOS 12 and the new range of iPhones. If you enjoy this app, support future development by a small donation through: http://www.s-r-n.de/midimittr/

  • 2.0.5

    Introducing Siri Shortcut Support! midimittr now provides shortcuts for the browsing and advertising as a Bluetooth MIDI Device taking you straight to the views in midimittr. On iOS 12 you can record a personalised phrase to use with Siri, let Siri predict when you are most likely to use midimittr or use midimittr as part of your workflow with Shortcuts. The "Add To Siri" button can be disabled in the settings. If you enjoy this app, support future development by a small donation through: http://www.s-r-n.de/midimittr/

  • 2.0.6

    Temporarily removed Shortcuts integration as it was causing issues for iOS 9 users. It will come back in a future update!

  • 2.0.7

    Fixed a bug that resulted in MIDI-Bluetooth Device Lists not being updated when a new device was discovered. If you enjoy using midimittr consider a donation at http://www.s-r-n.de/midimittr or leave a review.

  • 2.0.8

    Fixed a bug where MIDI Clock Data would not have timestamps, thus resulting in inconsistent behaviour in some third party apps. Thanks to Mitch for reporting this bug!

  • 2.0.9

    midimittr has been updated to support iOS 13, fully supporting Dark and Light modes. midimittr will always be free and open-source. Find out more at http://www.s-r-n.de/midimittr or leave a review if you like the app.

  • 2.10.11

    Some iOS 9 users were experiencing issues with Bluetooth MIDI Views. This has been fixed in this update.

  • 2.2

    Updates for iOS 14. - Minimum requirement for new updates is now iOS 10. - Removed Today Extension

  • 2.3

    Fixed an issue where the MIDI port toggles would not be visible on older iOS versions on iPad Mini.

  • 2.4

    Fixed an issue where the background behind the notch and dynamic island would not be coherent with the app. Updated to Swift 5. Dropped support for iOS versions older than 12. If you need to download midimittr for an older iOS version, please read the FAQ on s-r-n.de/midile

  • 2.5

    Added Live Activities on iOS 16 and 17. You can now see the connected devices and apps at a glance.

  • 2.5.1

    Added Live Activities on iOS 16 and 17. You can now see the connected devices and apps at a glance. - Fixed Live activities not reflection selected sources/destinations - Fixed visual alignment issue when no sources or destinations have been selected

  • 2.5.2

    Added Live Activities on iOS 16 and 17. You can now see the connected devices and apps at a glance. - Fixed Live activities not reflection selected sources/destinations - Fixed visual alignment issue when no sources or destinations have been selected - Fixed a bug where midimittr would stop working in background

  • 2.5.3

    Added Live Activities on iOS 16 and 17. You can now see the connected devices and apps at a glance. - Fixed a potential crash for users that are using midimittr on macOS via the appstore

  • 2.6 · 15 Sep 2025

    Updated to support the iOS 26 design language.

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Data quality & evidence

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Last verified
5 Aug 2026
Sources
App Store

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