midi modulation app for ipad

Four independent LFOs with configurable shape, rate, clock sync, offset, lag, inter-LFO modulation and more!

Quick to configure, easy to use. Simple but powerful. Looking for a MIDI controller LFO app for your iPad? You've found it.

Control other iPad music apps via CoreMIDI, or external MIDI synthesizers using a CCK and USB-MIDI interface.

Created by the developer behind the pioneering iOS CoreMIDI music apps FunkBox and Little MIDI Machine.


  • Sine, triangle, saw, square, and S+H shapes
  • Adjustable LFO rate and offset
  • Syncs to MIDI clock
  • LFOs can modulate other LFOs for more complex shapes
  • Map a MIDI controller to LFO trigger, rate, and mod amount
  • Easily configure MIDI output port, channel, CC#, and CC min/max values


  • Modulate the filter cutoff frequency and resonance of an iOS synth app
  • Vary the pan and volume values of the hi hats on an iOS drum machine app
  • Adjust the mix and feedback values of an iOS delay effect app