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Calca is a powerful symbolic calculator that updates as you type, giving you instant answers. It solves equations and simplifies complex expressions. It is also a rich Markdown text editor so that you can explain your ideas alongside your calculations.

Calca is perfect for professionals and students - anyone who works with numbers and equations. Variables and functions can be created with only a few keystrokes and can be manipulated with a rich library of operators and functions.

All calculations are stored as plain text so you can easily share them with other editors and move them from device to device. Calca more...

What's New

Version 1.2.2:

  • Performance and stability improvements.
  • Added Calca file type to make opening documents from Finder easier.
  • Fixed input of special characters.


  • OS X 10.6 or later

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Current Version (1.x)


Downloads 512
Version Downloads 127
License Commercial
Date 14 May 2014
Platform OS X / Intel 32
Price $4.99
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