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Amphetamine vs Capsomnia: catalog facts
Amphetamine	Capsomnia
Free Free on the Mac App Store.	Free Free and open source under the MIT license.
macOS	macOS
Trigger-based rules are more flexible than a basic keep-awake toggle Completely free	Uses the Caps Lock key as a physical keep-awake switch Supports closed-lid MacBook work
macOS only Some trigger setups require digging into the app's settings	The signed installer requires macOS 14 or later on Apple silicon Source installation requires macOS 13.5 or later on Intel
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	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked October 8, 2026

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