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Capsomnia vs Amphetamine: catalog facts
Capsomnia	Amphetamine
Free Free and open source under the MIT license.	Free Free on the Mac App Store.
macOS	macOS
Uses the Caps Lock key as a physical keep-awake switch Supports closed-lid MacBook work	Trigger-based rules are more flexible than a basic keep-awake toggle Completely free
The signed installer requires macOS 14 or later on Apple silicon Source installation requires macOS 13.5 or later on Intel	macOS only Some trigger setups require digging into the app's settings
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
No account 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 September 22, 2026

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