musicIO : MIDI over USB between your iOS device and either a Mac or Windows desktop.

This is the MIDI-only version of musicIO, the only professional MIDI and audio-over-USB solution for iOS. This version is limited to MIDI, if that's all you need -- a bundle is available to upgrade to the full version of musicIO to get both MIDI and audio, without needing to change the desktop server.

Easily send MIDI between your iOS and desktop DAW. It's fully bidirectional, simple, reliable, and near-zero latency.

musicIO is a joint effort by three of the most respected iOS music app development teams. Confusion Studios makes MIDI Designer Pro, the most innovative MIDI controller platform for iOS. MIDI Designer is adored by users, loved by Music Industry press, and trusted on stages and in studios around the World. Audeonic Apps makes the pioneering MidiBridge app, an essential tool for routing and filtering MIDI messages on iOS; they also provide the MidiBus software library, which powers dozens of successful music apps (including musicIO). The Secret Base Design team has built a range of pioneering apps providing high-speed MIDI and audio connections over Bluetooth LE and WiFi, as well as unique signal processing apps.

The three teams have joined forces to build the only fully integrated USB audio and MIDI solution that doesn't require additional hardware. It's been in development for months, from developers with decades of experience. musicIO lets your iOS device become an integral part of a modern professional music production system.

• Send & Receive MIDI between any CoreMIDI apps over USB (Lightning or 30 pin) with no perceptible latency nor jitter
• Large sysex messages (eg. bulk dumps) handled seamlessly
• Choose "send to" ports (OSX and iOS)
• Choose "receive from" (OSX): route MIDI from anywhere to your iOS device
• BridgeClock, a ground-breaking inter-device MIDI-clock-synchronization technology, provides jitter-free sync between platforms

• musicIO is designed to work with iOS 7 or newer, OS X 10.7 or newer, and Windows Vista, 7, and 8 should work, but we recommend Windows 10. Please check VST compatibility with your Windows DAW; Audio to a PC is transferred in 32-bit stereo, at 44.1khz. The Mac can also handle other audio sample rates.

Download the free, companion app and plug-ins from the the musicIO web site ( and get connected in no time. See the demonstration video:

Please let us know what you think and how you're using musicIO! feedback [at]

What’s New

Version 1.60

Added support for MidiTV. Send MIDI from your iOS device to the Apple TV.
Added a switch to disable ahead-of-time MIDI scheduling, for connections to Windows PCs.

Ratings and Reviews

2.3 out of 5
3 Ratings

3 Ratings

Critic313 ,

Crashes Ableton Live

It works while it's working but when I close Ableton Live this app will always crashes it.

Forest r ,

Has problems, and no support help

I bought this for every person in my band when I switched away from wifi connection and when the computer client began crashing (whenever some hardware was turned on) and an iPhone 4s and iPad 2 were having issues with it no one responded to any of my emails. Now here it is a month later and I still haven't heard anything from them. As it turns out Touch OSC now supports USB connection as of last month's update and it works flawlessly, unlike this unreliable app, so I happily no longer need MusicIO. MusicIO in conjunction with touch osc (or lemur) doesn't work well on older devices, works ok on new devices but sometimes comes disconnected for no reason even on those so I deem it unusable for professional applications.

whydoyoumakememakeanickname ,

Waste of money, at least if you live in 2018

Doesn’t work period, VST plug-in is the only available download from developer website and it won’t open in any DAW or work at all. There’s a disclaimer on the website but they sure didn’t make it obvious that it doesn’t work before you pay in AppStore. Remove this trash, maybe it worked great years ago, but it’s obviously abandoned as far as development goes, it’s crazy they let people sell apps that don’t work at all....

App Privacy

The developer, Power Trio, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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