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Watson vs Kapow Punch Clock: catalog facts
Watson	Kapow Punch Clock
Free Free and open source under the MIT licence.	Free Free and open source under the GPL version 3.
macOS, Linux, Command line	Windows, Linux
Projects and tags with filtered reports Quick start and stop commands	One-button clock in and clock out Editable sessions after the fact
Command line only Requires Python	No macOS build listed Basic reporting compared with full time-tracking services
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0-or-later
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 2, 2026

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