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GNU bc vs calc: catalog facts
GNU bc	calc
Free Free software from the GNU Project.	Free Free and open source under the LGPL-2.1-or-later license.
Command line	Command line
Arbitrary precision arithmetic Scriptable, with C-like syntax	Handles arbitrary-precision numbers Works interactively or from a command-line expression
Terse syntax unfamiliar to casual users Text-only, no graphing or symbolic maths	Uses a command-line interface
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: LGPL-2.1-or-later
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 1, 2026	Official website Full listing and sources Checked October 8, 2026

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