Koshiba is a 16-step gate sequencer plug-in effect that can transform a sustained sound into a rhythmic phrase.

Each step of the gate is synchronized to the beat of the DAW, and has different volume, PAN, filter, LFO, and envelope parameters. The steps can be tied together to create longer gates, and Koshiba includes a filtered delay that allows you to set a different amount of FX sends for each step.

#Universal App
It is compatible with iPad and iPhone and has multiple screen layouts optimized for different screen sizes.

#Audio Unit Extensions (AUv3)
You can use this AUv3 Plug-In in a host application that supports Audio Unit Extensions (AUv3).

You can stream live audio directly to an Audiobus compatible application. See for more information.

#Ableton Link
Link is a technology that keeps devices in time over a local network. See for more information.

# MIDI input
--Core MIDI, Virtual MIDI, Inter-App Audio MIDI Input
--MIDI clock synchronization
--MIDI controller mapping

For more information:

What’s New

Version 1.0.5

Fixed an issue where a space character after a preset folder name would make the folder inaccessible.

Ratings and Reviews

4.4 out of 5
8 Ratings

8 Ratings

Eriptron ,

Bloody Incredible

I'm still getting my head around Koshiba's subtleties but one thing that could be changed for the better is the rate selection. It's a sequential selector, forcing me to audibly create undesirable audio artifacts by forcing the user to 'step though' undesirable rates till you hit the desired rate. The rate control would be better if they were directly selectable.


Another iceWorks lovely

This app is bomb like all iceWorks apps in my humble opinion! I own them all and they all have their unique strengths and sounds and never seem to overbog when using multiple auv3s.

Comtubly Numm ,

Not working

Mine doesn’t make a peep - I hear nothing. I keep looking for the on/off switch. I do see blips in the arp. Just no sound.

Developer Response ,

I apologize for the inconvenience. However, on my devices, this effect app is working fine. Could you please email me what AUv3 host app (DAW, etc.), iOS version, device name you are using to solve your problem?

App Privacy

The developer, iceWorks, Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

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

More By This Developer


You Might Also Like