Open Source Calculator and Mathematics Apps

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  • Calculator Calculator


    Xlythe (Calculator)

    24737 ratings

    Calculator is a simple 4 function calculator, with a panel that has more advanced functions when you need them. It includes history, real time graphing, base conversion, and more. It also comes with a lockscreen widget, a floating calculator, and...

  • Mathdroid Mathdroid


    Elliott Hughes

    450 ratings

    Algebraic entry. Full on-screen history (multi-line display). Use your phone's keyboard or on-screen buttons. Usual functions: trig, log, etc. Parentheses. Copy to clipboard. Open source.

  • Addi Addi


    Corbin Champion

    667 ratings

    Much more than a scientific calculator. A Computing Environment useful for solving many complex problems. A Matlab / Octave clone for Android. Java based and open source. Free and Ad free. Has most needed math capabilities. A lot of function...

  • Free42 Free42


    Thomas Okken

    1605 ratings

    Free42 is a re-implementation of the HP-42S calculator and the HP-82240 printer. It is a complete rewrite, not using any HP code, and it does not require an HP-42S ROM image. Free42 is an Open Source project. The executables and source code are...

  • droidplot droidplot


    Corbin Champion

    289 ratings

    gnuplot running on android. Need ATE (android terminal emulator) installed before you install this to work -

  • arXiv mobile arXiv mobile

    arXiv mobile

    Nonlinear Apps

    702 ratings

    An arXiv app for Android. The app is open-source - contributions are welcome. Unfortunately, I have limited time for supporting the app. It needs a bit of visual refresh and some fixes. arXiv mobile is science on your phone! Browse daily science...

  • OsciPrime Oscilloscope Legacy

    OsciPrime Oscilloscope Legacy


    316 ratings

    *Important Note*: Thank you all for your incredible support. We are taking the OsciPrime Oscilloscope one step further. The new application on the market ( ) will have all the features plus new multi touch support and is also...

  • Octave Octave


    Corbin Champion

    1303 ratings

    This is launches Octave for Android. Octave is like Matlab (trademark of Mathworks), but free (as in freedom) software. Not some similar program, but really Octave running natively. The app is now free (as in $) to use, but a donation is...

  • Matrix Calculator Matrix Calculator

    Matrix Calculator

    590 ratings

    This is a simple, OPEN SOURCE and FREE matrix calculator. Support some simple operations with matrices (example:AxB, Inverse, Determinant, Eigenvalues). Now, it's working only with the real numbers, but in the future we will add the complex...

  • Tippy Tipper (Tip Calculator) Tippy Tipper (Tip Calculator)

    Tippy Tipper (Tip Calculator)

    Mandaria Software

    794 ratings

    A simple and open source Tip Calculator. * Enter bill via custom keypad * Select tip by slider or three configurable buttons * Round up/down by tip/total * Split bill * Exclude tax rate I welcome patches! Please purchase the donate version if...

  • Simple Loan Calculator Simple Loan Calculator

    Simple Loan Calculator

    Andrei Samkov

    6199 ratings

    The Simple calculator for annuity, differentiated and fixed payments. Calculation:the monthly payment, the amount of interest paid, the total cost of credit, amortization schedule and a comparison of all these indices between different loans....