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InerziaTimer is a simple but powerful countdown/chronometer/alarm clock for the Mac, completely written in Cocoa. You won't lose a second again, with InerziaTimer!

InerziaTimer does exactly what real chronometers do: if you can measure it with a professional chronometer, you can do the same with your Mac. With a precision of 1/100 seconds, you'll be able to time about everything with a precision never seen before. And there are features for every need: simple shortcuts, laps, export and customization are all available in InerziaTimer.

Even digital wristwatches have a countdown built-in, so why your Mac more...

What's New

Version 2.4:
  • [Improvements] The main window is now transparent and its titlebar is hidden (OS X 10.10 Yosemite or later)
  • [Bugs Fixed] The window has been enlarged to fit the new font style in OS X 10.11 El Capitan


  • OS X 10.6.8 or later

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5 1


Current Version (2.x)


Downloads 3,221
Version Downloads 126
License Free
Date 08 Oct 2015
Platform Intel 64 / OS X
Price Free
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