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Perplexity Comet vs Fellou: catalog facts
Perplexity Comet	Fellou
Freemium A free tier is available. Full agent features require a Perplexity subscription.	Freemium Free to download, with paid plans for heavier agent use.
Windows, macOS	Windows, macOS
Assistant can act on pages, not only summarise them	Agent can run multi-step tasks across several websites Shows an editable action plan before it acts
Requires a Perplexity account, and an agent acting on logged-in sites carries real risk Closed source	Browser itself is closed source Agent actions depend on AI services and an internet connection
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	Needs internet
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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