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Simple Time Tracker vs Hamster: catalog facts
Simple Time Tracker	Hamster
Free Free and open source under the GPL-3.0.	Free Free and open source under the GPL-3.0 licence.
Android	Linux
One-tap start for activities Statistics and history of past records	Local time tracking with no account Packaged in Debian, Ubuntu and openSUSE
Android only Aimed at personal tracking rather than team timesheets	Linux and GNOME only Fedora packages are outdated
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	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 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.