GNUitar
4.6#38 in audio pluginsLinuxWindows
VisitNo prices published.
You want what its maker publishes above — check its page for the details.
ADAPTIVERB suits musicians, mixers, mastering engineers, film composers, and sound designers using supported macOS or Windows plug-in formats. It is intended for users who need adaptive reverb and related drone, pad, filtering, or pitch-processing controls.