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Pola Browser vs Zen Browser: catalog facts
Pola Browser	Zen Browser
Free Distributed through the Mac App Store; pricing is not stated on the homepage.	Free Free and open source, funded by donations.
macOS	Windows, macOS, Linux
Tab folders, spaces and profiles for separating projects Visual, searchable tree of browsing history	Vertical tabs, workspaces and split view built in, no extensions needed Firefox engine, so Firefox extensions and containers work
Mac only Only a handful of extensions are supported so far	Young project; interface changes between releases and bugs surface A small team maintaining a Firefox fork is a real long-term risk
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MPL-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 21, 2026

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