Opening the iTunes Store.If iTunes doesn't open, click the iTunes application icon in your Dock or on your Windows desktop.Progress Indicator
Opening the iBooks Store.If iBooks doesn't open, click the iBooks app in your Dock.Progress Indicator

iTunes is the world's easiest way to organize and add to your digital media collection.

We are unable to find iTunes on your computer. To download the free app MIDI Monitor by Domestic Cat, get iTunes now.

Already have iTunes? Click I Have iTunes to open it now.

I Have iTunes Free Download
iTunes for Mac + PC

MIDI Monitor

By Domestic Cat

Open iTunes to buy and download apps.

Description presents Midi Monitor - the free and easy way to test & monitor MIDI hardware. Now compatible with iPhone & Line 6 MIDI Mobilizer as well!
★ Top 20 in Music in over 35 countries, and featured in the App Store worldwide! ★

Now you can plug in a compatible MIDI device to send and receive messages using your iPad & MIDI Monitor. If you have an iPhone, you can use the Line 6 MIDI Mobilizer.

Alternatively connect via WiFi using a MIDI Network Session on OS X, or use the free app DSMIDIWiFi for PC or Mac.

Midi Monitor features:

★ Simple operation - simply plug in your MIDI Device via the Camera Connection Kit, Line 6 Midi Mobilizer, or connect using WiFi and start testing - all messages received display on the log.
★ Test your MIDI Devices to see if they are compatible with iPad & USB Camera Connection Kit
★ MIDI Out to hardware with your iPad - thanks to the built in controls & keyboard you can send MIDI messages from your iPad to your connected MIDI Device.
★ MIDI Out via the Line 6 MIDI Mobilizer on iPhone/iPad to any MIDI Hardware or device (or other iPhone/iPad!)
★ Use MIDI Monitor as a basic controller
★ Controls update to reflect MIDI Messages received
★ Handy for device diagnosis

★ More to come!

Check out for more info.

What's New in Version 2.0

★ Be sure to check out our other app: Midi Touch, a professional, customisable MIDI controller! ★
- Support for the Line 6 MIDI Mobilizer on both iPhone & iPad!
- Midi Monitor is now a universal app
- Midi over WiFi (PC & Mac): support for DSMidiWiFi
- Midi over WiFi (Mac only): more robust support for MIDI Network Sessions
- Added gestures for sliders: double tap on the slider 'rail' to jump to position, slide finger on rail for fine tuning
- Changed knob control style to vertical (was circular)
- Fixed bug reading pitch bend messages from some devices

Bugfixes & compatibility:
- Added support for Note Off messages with zero velocity
- Fixed a bug where CC 28 would send a on message when lifting off button


iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPhone Screenshot 5
iPad Screenshot 1
iPad Screenshot 2
iPad Screenshot 3

Customer Reviews

Great app!

I use thisthrough an Alesis dock. To a PC I recommend downloading rtpMIDI plugin. It works amazing great for tweaking any amp settings. Would give this 5 it had a few more sliders and an option to move the keyboard out the way. Love it I would pay a couple bucks for an upgrade for sure.


Amazing app, helps you check everything from cc messages to velocity and aftertouch, i've never used it as a controller though, but i guess it would work ok.

Doesn't work right on ios 8.x and iPad2

Looks like no development work has been done for quite awhile. On my iPad2 with iOS 8.x, Monitor starts in landscape mode, and flips/locks immediately to portrait, cutting off a lot of the controls, and rendering it pretty useless. Domestic Cat, why don't you fix your software or pull it down!???

MIDI Monitor
View In iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Music
  • Updated:
  • Version: 2.0
  • Size: 3.3 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 4.2 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions: