Alternatives to OpalCalc for all platforms with any license

  • SpeedCrunch

    SpeedCrunch is a free, fast, high precision open source algebraic calculator with an intuitive interface and a extensive list of features, including: Unlimited...

    Free Open Source Mac OS X Windows Linux PortableApps.com

    SpeedCrunch icon
    • Very, very similar to opal. For less strenuous calculations speed is better. For more complex calculations, opal, full version is better with a slightly higher learning curve. Guest • Nov 2017 Disagree   Agree
  • Frink

    Frink is a practical calculating tool and programming language designed to make physical calculations simple, to help ensure that answers come out right, and to make a...

    Free Windows Linux Android Java

    No features added Add a feature

    Frink icon
  • Calculator Plus

    Calculator Plus is a nice addition to hundreds of Calculator apps but with unique idea and innovative and user friendly designed buttons. A sound and smart person...

    Free Android

    No features added Add a feature

    Calculator Plus icon
  • Notepad Calculator

    For jotting down quick calculations. Mix free form text with calculations and see the results appear in the right hand margin as you type.

    Free Open Source Web

    No features added Add a feature

  • CCCalc

    CCCalc is a calculator with tape, you can correct any printed character with, and the tape recalculates everything itself. Unlimited precision, visible and even...

    Free Windows

    No features added Add a feature

    CCCalc icon
  • SimpleCalc

    A calculator written in C#.NET 3.5 that aims to be simple and usable. Future plans include functionality above and beyond that of the standard windows calculator....

    Free Windows

    No features added Add a feature

    SimpleCalc icon
  • Omni Calculator

    Omni Calculator is a web/mobile calculator that solves concrete problems such as mortgage payment, gross margin, body mass index, break-even point, etc. It's very...

    Free Web Android iPhone iPad

    No features added Add a feature

    Omni Calculator icon
  • Ruvenss Calculator

    Simple yet very effective calculator with print capabilities and log registration.

    Free Mac OS X Windows Linux Chrome OS

    No features added Add a feature

    Ruvenss Calculator icon
  • Numeric Notes

    Numeric Notes – is not just a totally new way to count, but also possibility to keep and share calculations on your Mac. Individual notes for home calculations, work...

    Commercial Mac OS X

    No features added Add a feature

    Numeric Notes icon
  • CalcNote

    CalcNote is a notepad calculator designed for smartphones. You can immediately obtain calculation results as soon as you've added any calculations on a line. ...

    Free Android

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Platforms

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