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Proton Pass vs Keeper: catalog facts
Proton Pass	Keeper
Paid Pass Family is a paid subscription covering six users.	Paid A paid subscription is required for practical use.
Windows, macOS, Linux, Android, iOS, Browser extension	Windows, macOS, Linux, Android, iOS, Browser extension
End-to-end encryption for logins, cards and notes Shared vaults update for every member at once	Consistent apps and browser extensions across every platform Extends into enterprise secrets and privileged access management
Family features require a paid subscription Requires a Proton account for every member	Subscription required; the free tier is limited to one mobile device Closed source
Downloadable app, Hosted service, Browser extension	Downloadable app, Browser extension
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 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.