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Twixtor vs Flowframes: catalog facts
Twixtor	Flowframes
Paid Paid per host application, with a PRO edition that adds more features.	Freemium Older builds are free on itch.io; the latest builds are for Patreon supporters.
Windows, macOS	Windows
Optical flow slow motion with a machine learning model Supports a long list of editing and compositing hosts	Graphical interface for RIFE and DAIN interpolation Supports both CUDA and NCNN backends
Mostly a plugin that needs a host application Stand-alone version only with Twixtor PRO	Windows only Latest builds require Patreon support
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 September 24, 2026

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