RPN calculator

RPN calculator

10,000 - 50,000 downloads

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RPN is a four function calculator designed to replace the standard Android calculator. It features large buttons designed for easy touchscreen use. It operates using Reverse Polish Notation, uses high accuracy decimal arithmetic internally, and has a fixed point scrollable display.

The code is open source and available at https://github.com/lpar/RPN

Found a bug? E-mail meta@pobox.com

Tags: calculator, rpn, rpn calculator, calculator rpn, calculatrice rpn, rpn calculator widget, rpncalculator, rpn calculator on nexus 7, rpn lommeregner, rpn calculator pro.

Recently changed in this version

2.0.4 fixes a crash and allows raise to fractional powers.

2.0.3 tweaks font sizes when system font size is "Huge", to avoid a layout glitch.

2.0.2 fixes visual glitching on Galaxy Nexus running Jelly Bean (Android 4.1).

Version 2.0 added a redesigned Holo UI and requires Android 4 (Ice Cream Sandwich). It also added a square root function. Version 1.x is still available for older phones.


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Screenshots RPN calculator
View bigger - RPN calculator for Android screenshot
View bigger - RPN calculator for Android screenshot
Comments and ratings for RPN calculator
  • (67 stars)

    by mikeacox39 on 24/02/2011

    Most annoying; too often sounds a double click when pressing keys. Produces the feeling a digit has been entered twice, when it hasn't. Doesn't explain the function of Set DP, Drop or double up-down arrows. But, as a simple RPN calc it works fine

  • (67 stars)

    by Marcelino Deseo on 20/03/2014

    could you add 'DUP' to copy the top most stack? I know I can use copy and paste yet I think DUP is faster. Anyway, great app :-)

  • (67 stars)

    by Herman Seip on 18/03/2014

    Fast startup, enough features. RPN, my way.

  • (67 stars)

    by Carlton Adam on 08/02/2014

    Simple and functional.

  • (67 stars)

    by cdaler on 10/01/2014

    Good app for rpn calculations.

  • (67 stars)

    by Dan Roth on 20/10/2013

    It lags a bit between me pressing a button and something happening (number displaying, function operating, etc.)

  • (67 stars)

    by Kamen Tomov on 05/10/2013

    This is high quality! If you're looking for an rpn calculator this is the best choice!