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Moment vs Countdown: catalog facts
Moment	Countdown
Paid A seven-day trial is available; continued use requires purchase.	Free Free and open source under the MIT license.
macOS	Windows, macOS, Linux, Command line
Countdown and count-up timers Per-event menu bar items	Accepts durations or target times Can run a command when the countdown ends
Requires macOS Catalina or later Paid after the seven-day trial	Spoken announcements use the macOS say command
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	Not stated if an account is 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 8, 2026

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