Compare software

bttf vs Soulver CLI: catalog facts
bttf	Soulver CLI
Free Free and open source, dual-licensed under MIT or the Unlicense.	Free Free to install via Homebrew or GitHub.
Windows, Command line	macOS, Command line
Datetime parsing, formatting and arithmetic in one tool User guide and comparison with other tools	Natural-language maths, units, currencies and dates in the terminal Accepts piped input for use in scripts
Young project with a short history Command-line only	macOS only Small project with limited documentation
Downloadable app	Downloadable app
Open source	Open source
License: MIT OR Unlicense	License: MIT
No account needed	No account needed
Works offline	Not stated if it 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.