RPN calculator

    RPN calculator icon

    RPN calculator

    by: 190 8.6

    8.6 Users



    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

    Found a bug? E-mail

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

    Users review

    from 190 reviews



    Users comments

    John Blue

    by John Blue

    Jul 06, 2017  |  "Awesome"

    Nice, simple calculator for those of us who like RPN.

    Robert Jordan

    by Robert Jordan

    Jan 24, 2017  |  "Great"

    Have used RPN for 40 years. Have looked at many Android RPN calcs and settled on this one primarily because of the great stack/history view. Would give you five stars if it had a Roll button to scroll the stack. Would also like slightly larger/bolder font on the buttons. Not updated since 2013, really? Too bad.

    JP Johnson

    by JP Johnson

    Dec 22, 2016  |  "Awesome"

    I have loaded this on every phone I have ever had.

    Claudine Govier

    by Claudine Govier

    Sep 12, 2016  |  "Awesome"

    Love it! Just what I needed for a quick Calc.

    Trenton Lipscomb

    by Trenton Lipscomb

    Mar 21, 2016  |  "Awesome"

    Solid basic calculator. No permissions requires. One 4 stars + 1 star bonus for price.

    David Griffith

    by David Griffith

    Oct 18, 2015  |  "Great"

    Perhaps my only suggestion is to change the audio feedback to a soft click which can optionally be turned off (like how Free42 sounds).