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Keeper vs Proton Pass: catalog facts
Keeper	Proton Pass
Paid A paid subscription is required for practical use.	Paid Pass Family is a paid subscription covering six users.
Windows, macOS, Linux, Android, iOS, Browser extension	Windows, macOS, Linux, Android, iOS, Browser extension
Consistent apps and browser extensions across every platform Extends into enterprise secrets and privileged access management	End-to-end encryption for logins, cards and notes Shared vaults update for every member at once
Subscription required; the free tier is limited to one mobile device Closed source	Family features require a paid subscription Requires a Proton account for every member
Downloadable app, Browser extension	Downloadable app, Hosted service, Browser extension
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account 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 September 23, 2026

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