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Clock vs Play Timer: catalog facts
Clock	Play Timer
Free Free and open source under the GPL-2.0 or later licence.	Free Free and open source under the MIT licence.
Linux	Linux
Alarms, timers, stopwatch and world clock in one app Alarms can wake the device from suspend on Plasma	Timer appears in the desktop's media controls via MPRIS Notifications when a timer finishes
Wake-from-suspend works only on Plasma Linux only	Linux only Single-purpose timer without Pomodoro cycles or task tracking
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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