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Phi Browser vs Web: catalog facts
Phi Browser	Web
Free A free download; the homepage mentions no paid plans.	Free Free to download and build from the published source.
macOS	macOS
Native macOS interface on the Chromium engine Built-in AI assistant with persistent memory	Native macOS interface Local AI page questions through MLX on the Mac
Apple Silicon Macs with macOS 14 or newer only Proactive AI features may not suit users who prefer a plain browser	Requires Apple Silicon and macOS 26.5 or later Development preview with limited site compatibility testing
Downloadable app	Downloadable app
Closed 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	Not stated if it 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.