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iStat nano is an advanced system monitor in a tiny package. View detailed information on CPU, memory, hard drives, IP and external IP, bandwidth, CPU temperatures, fan speeds, battery, uptime and the top four processes. iStat nano features the lowest CPU usage of any stats widget we've seen (compare it if you don't believe us, I'm sure you'll be pleasantly surprised!).

What's New

Version 2.2:
  • Temperature monitoring for S.M.A.R.T capable hard drives (1 drive only)
  • Improved fan monitoring support for iBooks and PowerBooks
  • Improved 10.5 support


Mac OS X 10.4 or later

*Previously available here

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5 19


Current Version (2.x)


Downloads 52,459
Version Downloads 11,412
License Free
Date 22 Oct 2007
Platform OS X / PPC 32 / Intel 32
Price Free
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