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PlainCalc is a buttonless, algebraic-entry, mathematical calculator with variables. To use PlainCalc, type an expression or assignment and press Return or Enter. Unlike most calculators I've seen, PlainCalc allows you to indicate multiplication by juxtaposition, e.g., you can write 2?r instead of 2*?*r.

What's New

Version 2.3:
  • The size and position of the window is now stored with documents.
  • There is a Preferences dialog where you can set text colors and a timeout.
  • The % sign is a built-in constant whose value is 0.01, so that for instance you can write 73% instead of 0.73.
  • Improper recursive functions will no longer freeze or crash PlainCalc; instead, you will get a message saying "Timed Out" or more...


Mac OS X 10.4 or later

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PlainCalc User Discussion

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Nicksloan Member IconReview+81

PlainCalc has become my favourite app for doing sequential sums. It combines a beautifully minimal interface with all the calculating power that I am ever likely to need. Syntax colouring, clear and well-documented parsing of expressions, the ability to define constants and functions all add up to a good feature set for this type of calculator.

And the developer is very responsive: within days of my suggesting it, he added the ability to define default font and size, and pointed out that commenting elements of a calculation was possible simply by using option-return to add a line-break without evaluating the preceding text.

Arguably it is a disadvantage that user-defined constants and functions cannot be saved globally, but since PlainCalc can (very usefully) save calculations as documents, anything worth saving in a specific field can be stored in a document.

If all you want is to evaluate 45.226/9.4, then there are even simpler ways to do this, and if you are looking for more exotic functions, then you might want to look at SpeedCrunch or pay for an advanced scientific calculator, but for doing complex but relatively straightforward maths, PlainCalc hits the sweet spot for me, especially now that the venerable MathPad is beginning to grow whiskers.

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Version 2.2
Dokter_mac Member IconComment+104

Download link via MacUpdate does not work for me?

I've browsed to the homepage (more information link) & downloaded the file from there.



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Version 2.1
There are no Ratings for this App yet.
> 5 1


Current Version (2.x)


Downloads 4,101
Version Downloads 1,457
License Free
Date 17 Jan 2010
Platform OS X / PPC 32 / Intel 32
Price Free
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