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AS Timer vs Mater: catalog facts
AS Timer	Mater
Free Free; a paid AS TimerPRO version is also available.	Free Free and open source under the MIT licence.
macOS	macOS
Very simple scroll-to-set countdown Can be started from Terminal or AppleScript with arguments	Unobtrusive menu bar interface Time can be adjusted by dragging while running
Mac only Command-line options only apply when the timer is first launched	macOS only No published GitHub releases
Downloadable app	Downloadable app
Closed source	Open source
License not stated	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.