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Soulver CLI vs pdd: catalog facts
Soulver CLI	pdd
Free Free to install via Homebrew or GitHub.	Free Free and open source under the GPL.
macOS, Command line	Windows, Command line
Natural-language maths, units, currencies and dates in the terminal Accepts piped input for use in scripts	Quick date and time difference calculations from the terminal Built-in countdown timer
macOS only Small project with limited documentation	Command-line only, with no graphical interface Requires Python 3
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
No account 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.