errProof Alternatives

    errProof is described as 'The website has a lot of useful and unique tools' and is an website in the Education & Reference category. There are more than 100 alternatives to errProof, not only websites but also apps for a variety of platforms, including Windows, Mac, Android and Linux. The best alternative is SpeedCrunch, which is both free and Open Source. Other great sites and apps similar to errProof are Wolfram Alpha (Freemium), (Freemium), Qalculate! (Free, Open Source) and (Freemium, Open Source).

    This page was last updated Nov 18, 2019

    1. Numeric Notes – is not just a totally new way to count, but also possibility to keep and share calculations on your Mac.
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    2. Unit Wolf is a unit conversion program created for quick and reliable conversions. Enter entire equations or just simple numbers. Convert between 170 currencies or easily add different units together.
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    3. A modern, scientific calculator that is easy to use. While other calculators display only one number at a time, this one shows you the whole expression you are inputting, leading to a much more user friendly experience.
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    4. An easy to use scientific calculator with many advanced features to help you solve algebra, trigonometry, and engineering math problems. The calculator comes with six attractive color schemes and a side bar that slides open for additional functionality.
      • FreeProprietary
      • Mac
      A math expression calculator with persistent memory for variables and functions. Any JavaScript expression can be evaluated. - Click the C button to clear the output window. - Click the M button to view the list of all constants, variables, and functions.

    5. simple modern calculator that doesn't make you mash buttons.
    6. Advanced functions Productivity Tools solve numeric problem calculation.
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      • FreeProprietary
      • iPhone
      A simple tape calculator
      No screenshots yet
      • FreeOpen Source
      • Mac
      • Windows
      • Linux
      • Online
      • Chrome OS
      • Self-Hosted
      • JustBrowsing
      Calculator web-app for JustBrowsing project.

      Basic 4 function calculator plus square root and exponent functions. Supports keyboard shortcuts and made to resemble a real calculator.

      Online demo:
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      • FreemiumProprietary
      • HP webOS
      Random Numbers allows you to quickly and easily generate a random number in a given range!
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    Showing 80 of 101 alternatives