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Keyguard vs Open Passkey Authenticator: catalog facts
Keyguard	Open Passkey Authenticator
Freemium Free to use; some features marked in the feature list require a paid subscription.	Free Free and open source under the EUPL-1.2.
Android	Android
Works with Bitwarden accounts and KeePass files Watchtower checks for leaked and reused passwords	Stores passkeys on the device through Android Credential Manager Works with FIDO hardware keys over NFC and USB
Source is published under a custom licence rather than an OSI licence Some features require a paid subscription	Requires Android 13 or later Small project with few contributors
Downloadable app	Downloadable app
Closed source	Open source
License: Custom (source available)	License: EUPL-1.2
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 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.