Freek is a comprehensive VST plugin designed to help you phase-lock the left and right frequency shift.

It features stereo frequency shifting, stereo barberpole phasing and dual 96-waveform LFOs. In addition, Freek offers 8 different random modulations for the waveforms, as well as 32 sequencer patters.

You can also synchronize the tempo and control the plugin using a MIDI device.