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Hamster vs Timetrap: catalog facts
Hamster	Timetrap
Free Free and open source under the GPL-3.0 licence.	Free Free and open source.
Linux	macOS, Linux, Command line
Local time tracking with no account Packaged in Debian, Ubuntu and openSUSE	Short abbreviated commands for fast check in and out Multiple named timesheets
Linux and GNOME only Fedora packages are outdated	Requires a Ruby installation Updates are infrequent
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License not stated
No account needed	No account needed
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.