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Chalk vs SpeedCrunch: catalog facts
Chalk	SpeedCrunch
Free Free calculator software; the developer provides downloads.	Free Free and open source under the GPL.
macOS	Windows, macOS, Linux
Designed for both everyday and scientific calculations Documentation and examples are available	Results update as you type Up to 50 digits of precision
Available for macOS	Latest advertised release is the long-standing 0.12 Keyboard-centred design may not suit button-only users
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0-or-later
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 2, 2026

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