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FabFilter Pro-R vs Dragonfly Reverb: catalog facts
FabFilter Pro-R	Dragonfly Reverb
Paid Paid plug-in with a 30-day trial.	Free Free and open source, with optional donations.
Windows, macOS	Windows, macOS, Linux
Musical controls instead of technical reverb parameters Stepless Space control across many room models	Several reverb types in one bundle Runs on Linux as well as macOS and Windows
Paid after the trial Needs a host DAW; it is not a standalone app	Plugins only; needs a DAW or plugin host Maintained by a small team
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.