Compare software

eva vs kalker: catalog facts
eva	kalker
Free Free and open source under the MIT licence.	Free Free and open source under the MIT licence.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Android, Web, Command line
Interactive REPL or one-off expressions from the command line Syntax highlighting and persistent history	Natural math syntax with user-defined functions and variables Handles complex numbers, vectors and matrices
No packaged releases on GitHub A plain calculator, not a full programming language like bc	Derivatives and integrals are numerical estimates Higher-order derivatives can be inaccurate
Downloadable app	Downloadable app, Web application
Open source	Open source
License: MIT	License: MIT
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

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