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eva vs GNU Units: catalog facts
eva	GNU Units
Free Free and open source under the MIT licence.	Free Free software under the GPL, part of the GNU Project.
Windows, macOS, Linux, Command line	Windows, Command line
Interactive REPL or one-off expressions from the command line Syntax highlighting and persistent history	Handles nonlinear conversions such as temperature and wire gauge Converts to and from sums of units like feet plus inches
No packaged releases on GitHub A plain calculator, not a full programming language like bc	Command-line only, with no graphical interface Takes some learning to write complex expressions
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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