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

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