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FlowVision vs Viso: catalog facts
FlowVision	Viso
Free Free and open source.	Paid Costs $7.99 after a free trial.
macOS	macOS
Waterfall layout that preserves image proportions Browses both images and videos	Clean frameless viewing window Shows detailed image metadata including lens and location
macOS only A browser and viewer, not an editor	macOS only Paid after the trial
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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