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KeePassium vs KeePass: catalog facts
KeePassium	KeePass
Freemium A commercial open-source app distributed through the App Store.	Free Free and open source under the GPL.
macOS, iOS	Windows
Reads and writes all KeePass formats, including kdbx4 Two-way sync with almost any Files app storage provider	Entirely local, with no account and no service to trust The kdbx format is read by dozens of compatible clients on every platform
Apple platforms only Some features are tied to the commercial side of the app	The official client is Windows-focused and its interface is dated Syncing between devices is your responsibility
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-2.0
No account 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 September 22, 2026

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