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Trigger Box

By Justus Kandzi

This app is only available on the App Store for iOS devices.


Generate rhythmical patterns and send trigger/gate signals to your analog synthesizers.

Sequencer Types:
* Euclidean Rhythm Sequencer
* Step Sequencer (available as an in app purchase)

You can optionally use to different sequencers on the left and on the right stereo channel.

The signals generated by the app are at about 0.5V so they may have to be amplified to trigger a synthesizer.

What's New in Version 1.2.0

- New "shake trigger". Shake your phone to trigger your synth.
- Make it run on iOS 11

thanks for your patience.


iPhone Screenshot 1
iPhone Screenshot 2
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iPad Screenshot 1
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Customer Reviews

Update works great

Now works on iOS 10 and 11, thanks for the update!

Trigger Box
View in iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Music
  • Updated:
  • Version: 1.2.0
  • Size: 2.1 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. Step Sequencer$0.99
  2. Shaker$0.99