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Kronometer vs Chrono: catalog facts
Kronometer	Chrono
Free Kronometer is published under GPL-2.0 or later.	Free Free and open source under the GPL 3.0 or later.
Linux	Android
Records and sorts lap times Saves and resumes stopwatch sessions	Flexible alarm schedules, including date ranges Wake-up tasks such as math problems before dismissing
Kronometer is available as a Linux desktop application.	Developers describe it as still in development No code changes since January 2025
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	License: GPL-3.0-or-later
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 2, 2026

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