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