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Passy vs rust-keylock: catalog facts
Passy	rust-keylock
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the GPL-3.0 licence.
Android	Android
Data stays offline on your own devices AES encryption	Open source and written in Rust Android app on F-Droid
Smaller project than the established password managers Limited documentation in the available information	No formal security review yet, by the developers' own warning Smaller project with less ecosystem than mainstream vaults
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0
Not stated if an account is needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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