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Kapow Punch Clock vs klog: catalog facts
Kapow Punch Clock	klog
Free Free and open source under the GPL version 3.	Free Free and open source under the MIT licence.
Windows, Linux	Windows, macOS, Linux, Command line
One-button clock in and clock out Editable sessions after the fact	Time data stays in readable plain-text files you own Published file format specification in the public domain
No macOS build listed Basic reporting compared with full time-tracking services	Command line only, no graphical interface Requires learning the file syntax
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: MIT
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.