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CalcService allows you to enter calculations into any Service-aware app such as TextEdit, Mail, Messages, Safari, Xcode, or any of our apps, and calculate the result with a single keystroke. Append the result to the formula, replace the selected text with the result, or show the result in a panel. Never launch Calculator again if you just need a quick calculation.

What's New

Version 3.4.1:
  • NEW: Can be double-clicked and installed like an application.
  • Improved: Updated services names optimized for OS X Lion or later.
  • Improved: Appearance of alert dialogs.
  • Improved: New icon.
  • Required: Intel-based Mac, OS X 10.6.8 or later.


OS X 10.6.8 or later

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CalcService User Discussion

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Cowicide Member IconComment+1133

I love the calc & append service, has this been updated to work with Lion yet?

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Version 3.4
mekka Member IconReview+0

I can't live without this service anymore. It's nearly perfect. Fast, stable, reliable, works anywhere!

The only thing that bugged me the other day was that CalcService doesn't accept an equals sign at the end of the marked calculation when you hit command-"=", I guess it could be more tolerant there.

But hey, I can't complain! It's very precise, blazingly fast, and it's FREE!

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Version 3.1
There are no Ratings for this App yet.
> 4 1


Current Version (3.x)


Downloads 8,153
Version Downloads 466
License Free
Date 17 Jul 2014
Platform Intel 64 / OS X / Intel 32
Price Free
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