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Memory Diag helps you to easily monitor and optimize your memory usage and quickly access detailed memory information and diagnosis from your menu bar.

Highlighted features:

  • Based on the new memory concepts of OS X 10.9 Mavericks
  • Memory pressure meter and notifications
  • List of apps with significant memory usage
  • Customizable themes
  • Dynamic menu bar icon
  • and a lot more.

What's New

Version 1.0.1:
  • Click outside the window to dismiss the dialog.
  • New option for vertical icon.


  • OS X 10.9 or later

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Memory Diag User Discussion

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Nontroppo Member IconReview+515

Yay, from the makers of previous snake oil memory optimiser, comes the same thing with prettier graphics...

To quote an older comment of mine:

"Countless highly trained computer science engineers have built the virtual memory system across multiple OSes in this way. Do you really think a single line command or some two-bit app developer somehow can do something the most highly skilled (and in Apples case probably richly paid) CS engineers have failed to understand for years? Again, read The Memory Optimization Hoax by sysinternal engineer Mark Russinovitch (Windows VM is largely similar). "

Rocky sand studio, nor anyone else have ever made a reliable test case to show these optimisers do anything but damage performance objectively...

Reply1 reply
Version 1.0

Hm, according to their website their "optimisation" is still indiscriminately purging all caches, therefore still as useless in Mavericks as any other app of this type. Now if they could come up with a selective purge, that would be something!

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Current Version (1.x)


Downloads 2,313
Version Downloads 2,126
License Free
Date 21 Mar 2014
Platform Intel 64 / OS X
Price Free