SyncerSoft has announced they set free two previous commercial VST effect plugins- Flanger and Reverberation.

SyncerSoft has announced that its Flanger and Reverberation VST for Windows is now free (it was €5).
SyncerSoft Flanger and Reverberation is a processing module delivering accurate analog emulations of flanger and Reverberation
effects. With tube flanger and warm plate reverbs and wide halls.

Both plugins are available for instant download on SyncerSoft.

More info: Flanger VST and Reverberation VST