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1Password vs KeePassium: catalog facts
1Password	KeePassium
Paid Paid subscription for individuals and families, with a 14-day free trial.	Freemium A commercial open-source app distributed through the App Store.
Windows, macOS, Linux, Android, iOS, Browser extension, Command line	macOS, iOS
Watchtower flags breached, weak and reused passwords Stores passkeys as well as passwords	Reads and writes all KeePass formats, including kdbx4 Two-way sync with almost any Files app storage provider
No free tier beyond the 14-day trial Proprietary, closed-source software	Apple platforms only Some features are tied to the commercial side of the app
Downloadable app, Hosted service, Browser extension	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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