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Perplexity Comet vs Phi Browser: catalog facts
Perplexity Comet	Phi Browser
Freemium A free tier is available. Full agent features require a Perplexity subscription.	Free A free download; the homepage mentions no paid plans.
Windows, macOS	macOS
Assistant can act on pages, not only summarise them	Native macOS interface on the Chromium engine Built-in AI assistant with persistent memory
Requires a Perplexity account, and an agent acting on logged-in sites carries real risk Closed source	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
Closed source	Closed source
License not stated	License not stated
Account 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 22, 2026	Official website Full listing and sources Checked October 2, 2026

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