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BrowserOS vs Phi Browser: catalog facts
BrowserOS	Phi Browser
Free Free and open source.	Free A free download; the homepage mentions no paid plans.
Windows, macOS, Linux	macOS
Built-in AI agents that act on web pages Can use local models instead of a cloud service	Native macOS interface on the Chromium engine Built-in AI assistant with persistent memory
Agent features are new and still changing quickly Local models need capable hardware to run well	Apple Silicon Macs with macOS 14 or newer only Proactive AI features may not suit users who prefer a plain browser
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 2, 2026

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