Compare software

x11-calcRPN
Free

Free and open source under the GPL-3.0-or-later licence.

 Free

Free and open source under GPL-3.0-or-later.

Linux Android
  • Faithful simulation of many HP calculator models
  • Runs original firmware for accurate behaviour
  • Stack-based Reverse Polish Notation
  • Fixed-point decimal arithmetic
  • Niche audience familiar with HP calculators
  • Linux-focused distribution
  • Does not include scientific functions, unit or base conversions, programmability, or memory registers
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0-or-later License: GPL-3.0-or-later
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked October 1, 2026

Checked October 8, 2026

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