Auto Tune & Like-WaveVocal Rider Vst Filter Opinions?

[theelijahband]

Im looking for a free or very inexpensive vst filter, something like wave vocal rider.

Also a auto tune vst filter, I going to try Gsnap but any other suggestions?

 

[MOFO Pro]

Free autotune & pitch-shift VST - Wavosaur

Quick search came up with this... there's more out there but you generally get what you pay for... with some notable exceptions...