Open up new worlds of creative music making possibilities with Audiobus, the app that lets you use your music apps together, just like virtual cables.

Send live audio or MIDI from one Audiobus-compatible app or Audio Unit to another: add effects on top of your favourite synth, use your favourite step sequencer to drive the whole lot, and record it all in your favourite DAW, sampler or looper. Plug in a MIDI keyboard, run it through an arpeggiator or a key quantizer, and record the result in your DAW, or drive several different sound generators with a keyboard splitter. And control it all with a MIDI controller. The possibilities are endless.

Then save your setup in a preset to be restored with one touch later on.

With a completely new MIDI routing system, support for Apple's new Audio Unit Extensions standard, a new built-in mixer, MIDI learn, and huge new workflow improvements, Audiobus 3 represents a big step forward for mobile music making.

Audiobus has a rich community of over a thousand great compatible apps, including:

- Korg Gadget
- GarageBand
- Launchpad
- Animoog
- Loopy HD
- Cubasis
- Amplitube

and many more. See the full list at

Find Audiobus' user manual at

What the internet is saying about Audiobus 3:

"Audiobus is the most essential audio app on iOS."
- Charlie Sorrell, Cult of Mac

"[The| New MIDI routing and effects set to open up a whole new world of apps!"
- Tim Webb,

"Audiobus is one of the most intriguing and powerful additions to the iPad's music ecosystem."
- Federico Viticci,

"Audiobus 3 revolutionizes iOS music making again"

Audiobus: Your music apps. Connected.

What’s New

Version 3.4.6

- Fixed some issues with MIDI Learn bindings for MIDI ports when used with more than one pipeline simultaneously
- Fixed VoiceOver accessibility for mixer controls
- Fixed sync issue between MIDI Clock and Link when Link tempo changed
- Fixed issue where setting hardware buffer duration back to original value (after system-originated change) could fail

Ratings and Reviews

4.6 out of 5
141 Ratings

141 Ratings

cmruko ,

3.1.1 Brilliant

At First I was hesitant to buy Audiobus 3, I’ve owned Audiobus 2 for awhile but I wanted the Midi and AU capabilities. When AB3 was released I read there were some issues with the first installment so I held off. However as soon as the new update came out v3.1.1 everything was fixed and I purchased the app. With the Audiobus Bundle I even got a discount. I love it, connect all your music apps and send them to record on individual tracks...Yes please! I’ve used it everyday since purchase. Midiflow adapter allows you to use even more apps that aren’t compatible. I love using all my music apps together, adding effects to any audio and controlling apps with midi controllers/sequencers etc.. and the AB forum is one of the best iOS music resources out there. The Developer is responsive. If you make music on an iOS device this is an essential purchase, and should be one of the first apps you buy. AB2 is in fact the first app I ever paid for. Cheers.

polarpaul ,

MIDI Hardware Control

The new IAP makes it easy to control all aspects of your Audiobus sessions with your MIDI hardware and be able to easily recall your setups. With MIDI learn, you can easily mix and match MIDI hardware plus this also works with Bluetooth MIDI too. Audiobus 3 will remember specific controls for specific pieces or MIDI hardware in each preset. You can easily create templates for your MIDI controller setups and put in various synths, filters, eq, and effects as desired.

I like to use a foot pedal to start/stop play plus being able to mute/bypass audio/MIDI app sources in a setup allows for great flexibility in performances or for dialing in sounds without having to navigate screens.

Being able to use an iPad in conjunction with an iPhone to use MIDI apps which take advantage of the phone’s built-in sensors is very useful for controlling multiple parameters simultaneously.

Slimbeaux ,

The Very Best For My Workflow

When it comes to communicating between music apps, Audiobus is the best. I will be the first to admit that I have a very simple workflow, not relying on multiple effects to create my sounds. I prefer to adjust my sound in the app itself. With the addition of the IAP of Midi Learn for only $2.99 I free myself from having to use the on pad controls, using my Midi Control Surfaces instead. Start, Stop, Switch between apps, Mix, Adjust; all these and more are now at my fingertips. Ableton Link insures everything is in time. And with one of the most robust support communities at the Audiobus forums you just can’t go wrong.


Audiobus Pty. Ltd.
39.9 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2019 Audiobus Pty Ltd
In-App Purchases
  1. MIDI Learn $2.99


  • Family Sharing

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

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