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NerdCalciNumi
Free

Free and open source under the GPL-3.0.

 Freemium

Free to download, with a paid license offered on the website.

Android Windows, macOS, Linux, Command line
  • Variables reusable across lines
  • Natural syntax for percentage calculations
  • Write calculations as natural text with variables
  • Built-in currency, unit and time zone conversion
  • Android only
  • Text-based input takes some getting used to
  • Licensing terms are set by an end user license agreement rather than an open license
  • Not a scientific or graphing calculator
Downloadable app Downloadable app
Open source Closed source
License: GPL-3.0-or-later License not stated
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked October 2, 2026

Checked October 1, 2026

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