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Hamster vs KTimeTracker: catalog facts
Hamster	KTimeTracker
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under GPL-2.0.
Linux	Windows, Linux
Local time tracking with no account Packaged in Debian, Ubuntu and openSUSE	Reports logged time by task and day Supports nested subtasks within projects
Linux and GNOME only Fedora packages are outdated	Available for Linux and Windows
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 October 2, 2026	Official website Full listing and sources Checked October 8, 2026

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