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System Lens is a beautiful way to quickly manage resource usage on your Mac.

What's New

Version 2.51:
  • Fixed misaligned label in rate window.
  • Added monochrome icon support.
  • Updated CPU measuring algorithm.


  • OS X 10.7 or later

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System Lens User Discussion

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manleyPower Member IconComment+20

I can't see what this does. No screenshot, no icon, one-sentence description... Please provide more info or a demo.

Reply1 reply
Version 2

I installed the app and it seems to list applications that are using system resources based on predefined or custom threshold (*screenshot). It seems to me that it is based on CPU usage only. The app is not clear what is considering after all.

I have a late 2012 iMac and most of the time nothing is listed there. The Keycard app is the only app I saw there listed maybe because it keeps searching for my iPhone using Bluetooth.

In my opinion, memory usage could, or should, be an option here.

Anyway, a low end system owner may take advantage of this app because he can easily check what application is using more CPU constantly.


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Current Version (2.x)


Downloads 10,367
Version Downloads 3,770
Type Utilities / System
License Free
Date 09 Jan 2014
Platform Intel 64 / OS X
Price Free