OpalCalc AlternativesCalculators and other similar apps like OpalCalc

OpalCalc is described as 'Brand new type of calculator for the PC. As easy to use as Notepad or a word processor, OpalCalc allows natural language in the sum and multi-line support so you can go back and adjust your previous calculations on the fly' and is a Calculator in the education & reference category. There are more than 50 alternatives to OpalCalc for a variety of platforms, including Windows, Linux, Web-based, Mac and Android apps. The best OpalCalc alternative is SpeedCrunch, which is both free and Open Source. Other great apps like OpalCalc are Qalculate!, Numara Calculator, Numbat and Qaltex.

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OpalCalc alternatives page was last updated

Alternatives list

  1. SpeedCrunch icon

    SpeedCrunch

     291 likes
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    SpeedCrunch is a free, fast, high precision open source algebraic calculator with an intuitive interface and many features, such as variables, syntax highlighting, functions, persistent input history & more.

    129 SpeedCrunch alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • PortableApps.com
    Dark Mode
     
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    1
    Comments about SpeedCrunch as an Alternative to OpalCalc
    Guest
    Positive
    0

    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.

    Review by a new / low-activity user.
    OpalCalc Icon
    SpeedCrunch icon

    • SpeedCrunch is the most popular Windows, Mac & Linux alternative to OpalCalc.

    • SpeedCrunch is the most popular Open Source & free alternative to OpalCalc.

    • SpeedCrunch is Free and Open SourceOpalCalc is Freemium and Proprietary
    • SpeedCrunch is Privacy focusedOpalCalc is not according to our users
  2. Qalculate! icon

    Qalculate!

     101 likes
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    Qalculate! is a multi-purpose cross-platform desktop calculator. It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for everyday needs (such as currency conversion and percent calculation).

    115 Qalculate! alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Main window
     
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    1
    Comments about Qalculate! as an Alternative to OpalCalc
    Guest
    Positive
    0

    Very powerful yet not too hard to get . Opal has a more modern UI, but QualQ works fine.

    Review by a new / low-activity user.
    OpalCalc Icon
    Qalculate! icon
    • Qalculate! is Free and Open SourceOpalCalc is Freemium and Proprietary
    • Qalculate! is Privacy focusedOpalCalc is not according to our users
  4. Numara Calculator icon

    Numara Calculator

     8 likes
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    A simple but powerful notepad calculator which evaluates expressions as you type.

    13 Numara Calculator alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    Numara Light Theme
     

    • Numara Calculator is the most popular Web-based alternative to OpalCalc.

    • Numara Calculator is Free and Open SourceOpalCalc is Freemium and Proprietary
    • Numara Calculator is Privacy focusedOpalCalc is not according to our users
  5. Numbat icon

    Numbat

     23 likes
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    High precision scientific calculator with full support for physical units (web and terminal versions).

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Self-Hosted
    Numbat screenshot 1
     

    • Numbat is the most popular Self-Hosted alternative to OpalCalc.

    • Numbat is Free and Open SourceOpalCalc is Freemium and Proprietary
    • Numbat is Privacy focusedOpalCalc is not according to our users
  6. Qaltex icon

    Qaltex

     8 likes
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    Qaltex is a tape-like calculator with straightforward interface and a lot of features. It is inspired by many other similar applications, but solves their disadvantages and at the same time it is empowered with some unique options and widgets.

    29 Qaltex alternatives

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Windows
    Qaltex screenshot 1
     
  7. Numi icon

    Numi

     27 likes
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    Numi is a handy calculator app for macOS. It allows to describe tasks the natural way and instantly get an accurate answer. For example, $20 in euro - 5% discount or today + 2 weeks. Numi is not limited to simple calculations, it can solve expressions of any complexity, with...

    123 Numi alternatives

    Cost / License

    • Freemium (Pay once)
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Terminal
    Numi screenshot 1
     
  9. Soulver icon

    Soulver

     32 likes
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    Do you ever grab a calculator & the back of an envelope to work through an idea or problem that involves some math?

    116 Soulver alternatives

    Cost / License

    • Pay once
    • Proprietary

    Application type

    Platforms

    • Mac
    • iPhone
    • iPad
    Soulver screenshot 1
     

    • Soulver is the most popular iPhone & iPad alternative to OpalCalc.

    • Soulver is the most popular commercial alternative to OpalCalc.

    • Soulver is Paid and ProprietaryOpalCalc is Freemium and Proprietary
  10. GeoGebra Scientific Calculator icon

    GeoGebra Scientific Calculator

     9 likes
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    Free online scientific calculator from GeoGebra: perform calculations with fractions, statistics and exponential functions, logarithms, trigonometry and much more!

    135 GeoGebra Scientific Calculator alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    GeoGebra Scientific Calculator screenshot 1
     

    • GeoGebra Scientific Calculator is the most popular Android & Android Tablet alternative to OpalCalc.

    • GeoGebra Scientific Calculator is Free and Open SourceOpalCalc is Freemium and Proprietary
    • GeoGebra Scientific Calculator is Privacy focusedOpalCalc is not according to our users
  11. Windows Calculator icon

    Windows Calculator

     26 likes
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    A simple yet powerful calculator that includes standard, scientific, and programmer modes, as well as a unit converter. It's the perfect tool to add up a bill, convert measurements in a recipe or other project, or complete complex math, algebra, or geometry problems.

    135 Windows Calculator alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Windows
    Windows Calculator screenshot 1
     
  12. Parsify® for Desktop icon

    Parsify® for Desktop

     8 likes
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    Next generation notepad-based calculator, built with extendibility and privacy in mind. Works on Windows, macOS and Linux.

    Cost / License

    • Freemium (Pay once)
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    Main screen of the apps allows you to input expressions on the left, and receive their results on the right.
     
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    1
    Comments about Parsify® for Desktop as an Alternative to OpalCalc
    Sitino
    Negative
    0

    Apps made with Electron should be banned. Something that could be 100k in C++ becomes a 100M javascript monster

    OpalCalc Icon
    Parsify® for Desktop icon
    • Parsify® for Desktop is Freemium and ProprietaryOpalCalc is also Freemium and Proprietary
  13. NaSC icon

    NaSC

     20 likes
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    Its an app where you do maths like a normal person. It lets you type whatever you want and smartly figures out what is math and spits out an answer on the right pane. Then you can plug those answers in to future equations and if that answer changes, so does the equations its...

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Linux
    NaSC screenshot 1
    NaSC screenshot 2
    NaSC screenshot 3
     
  14. Kalk Calculator icon

    Kalk Calculator

     5 likes
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    Kalk is a convergent calculator application built with the Kirigami framework. Although it is mainly targeted for mobile Linux platforms, it can also be used on the desktop.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Linux
    • KDE Plasma
    • Linux Mobile
    • Flathub
    • Plasma Mobile
    Kalk Calculator screenshot 1
     
12 of 57 OpalCalc alternatives