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Soulver CLI vs bttf: catalog facts
Soulver CLI	bttf
Free Free to install via Homebrew or GitHub.	Free Free and open source, dual-licensed under MIT or the Unlicense.
macOS, Command line	Windows, Command line
Natural-language maths, units, currencies and dates in the terminal Accepts piped input for use in scripts	Datetime parsing, formatting and arithmetic in one tool User guide and comparison with other tools
macOS only Small project with limited documentation	Young project with a short history Command-line only
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT OR Unlicense
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.