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

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