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Proton Pass vs rust-keylock: catalog facts
Proton Pass	rust-keylock
Paid Pass Family is a paid subscription covering six users.	Free Free and open source under the GPL-3.0 licence.
Windows, macOS, Linux, Android, iOS, Browser extension	Android
End-to-end encryption for logins, cards and notes Shared vaults update for every member at once	Open source and written in Rust Android app on F-Droid
Family features require a paid subscription Requires a Proton account for every member	No formal security review yet, by the developers' own warning Smaller project with less ecosystem than mainstream vaults
Downloadable app, Hosted service, Browser extension	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
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 October 2, 2026

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