iPhone Screenshots


Modulate your analog gear by sending control voltages through the headphone jack.

Signals are in the range of +- 0.5V.

The Brute LFO is a powerful low frequency oscillator module that modulates your analog gear in many different ways.

It consists of three separate LFOs. LFO 1 and 2 can be combined to create unique waveforms. LFO 3 acts as a frequency modulation for the other two oscillators.
For extra expressivenes you can use the touch pads to control your synth.

The Oscillators can produce signals as low as 0.2Hz and go up to 150Hz.

There is a special "brute mode" that creates wild, out of control waveforms.

Midi support is available.

If you have any questions at all, please send me an e-mail.

You should really watch the video to know what its all about.


What’s New

Version 1.2.4

fixed the iPhone 6s bug

Ratings and Reviews

jazzresin ,

Brilliant Brute!

Wow. It should feel this good always. The touch response was lightening quick. Logical GUI to the and hand. There was a level of science to this app which you can feel through your whole body. Let me say it again WOW. The pureness of sound through the iPad pro floored me. Other sound synthesis apps don’t sound as science as the Brute does. Reduction of LFO into rhythms is always a fascinating experience. I look forward to the app developers future tools. I hope you can establish the connectivity of being an audio unit or at least interfacing with garageband. Love it. Can we hook a theremin up?

The pole bean ,

iPhone 6s Plus doesn't work

I used this for some time several months ago when I first bought my brute. Just tried to open it and the app immediately crashes. In need of an update in sure!

Jeff2094940038 ,

Doesn't work 6s

Loading screen pops up but keeps turning off before the app actually starts. Guess I need to figure out how to get my money back


Justus Kandzi
5.1 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2013 Justus Kandzi
In-App Purchases
  1. Midi Support Free


  • Family Sharing

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

More By This Developer

You May Also Like