Please Note: The MIDI* record and play features of this free app require a hardware MIDI accessory from Line 6: a Mobile Keys 25 or Mobile Keys 49 keyboard, or a MIDI Mobilizer II or MIDI Mobilizer MIDI interface. For more information on these products and the many compatible MIDI apps, please visit

MIDI Memo Recorder simply records and plays any MIDI data - any time, any place. The app's streamlined design makes it quick and easy to store, find, recall, and even email any type of MIDI information - all your synth sounds, Line 6 effect patches, musical inspirations, and more. And with iOS version 9.3 and higher, MIDI files can also be transferred between your mobile device and your computer using iTunes File Sharing.

When the MIDI Memo Recorder app is used in conjunction with the MIDI Mobilizer II and MIDI Mobilizer hardware MIDI interface accessories, it's compatible with every single product equipped with standard 5-pin MIDI connectors. That means literally millions upon millions of keyboards, amplifiers, effects devices, and other types of audio gear throughout the world.

The MIDI Memo Recorder app also serves as the firmware updater for Mobile Keys keyboards, and for the MIDI Mobilizer II and MIDI Mobilizer MIDI interfaces. That means you can always get the latest firmware simply by updating to the current version of the MIDI Memo Recorder app and running it.

* "MIDI" stands for Musical Instrument Digital Interface, the worldwide standard for communicating musical performance data between musical devices, computers, and mobile devices.

What’s New

Version 3.0.5

• Support for latest iOS
• Style updates
• Bug fixes

Ratings and Reviews

2.0 out of 5
4 Ratings

4 Ratings

tabsitha ,

Please modernize!!

Got an adapter for my iphone 7 to use the cords, just need the software to update!!

Sean Flemming ,

When it works, it's excellent.

I use this with my mobile keys 49, and when it works, it's great. It is compatible with almost every great synth app out there, and is very stable and user friendly. Unfortunately, any time there is an iOS update, it completely stops working. This app almost never updates, and leaves the user to troubleshoot when hardware doesn't work. If this worked with every major mobile os, i would give them some slack, but issues should be resolved without making a user wait for 8+ months each time. It's very very frustrating.

mSepsis ,

All You need from a simple MIDI librarian.

I think this turned out to be one of the most handy music tools for ios I have.

Installed and got it working with the mobilizer 2 on both the ipad2 and iPad touch - recording, saving and sending sysex dumps in about a minute.

At first I thought installing it in order to use the mobilizer was an obtrusive nuisance but I'm using this a lot as a backup buffer when sound designing, so it's turned out to be really a nice bonus app with the mobilizer.


Line 6, Inc
5.2 MB

Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.


English, Japanese

Age Rating


  • Family Sharing

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

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