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To download Temperature Gauge from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More.

Temperature Gauge

By Tunabelly Software

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IMPORTANT: Make sure to get the update to 4.5.2 for free at after purchasing.

Looking for fan control? Try a free trial of the PRO version at

Monitor and log all the temperatures and fan speeds inside your Mac.

With over 650 international five star ratings and world class support, it's a must have tool for every Mac user.

• Run in background mode with the info displayed in the menu bar.
• See the temperature values in either Celsius or Fahrenheit for every temperature sensor in your Mac.
• See the current, min and max values for every fan in your Mac.
• Log all temperatures, fan speeds and alerts to a CSV file.
• Show an alert if a temperature gets too hot.
• Choose what gets displayed in the menu bar.
• Works on all Macs.

Rated 8/10 on
Rated 5/5 on
Rated 4/5 and Editor's Pick on

We offer quick and easy support. If you have any issues, please email us and we will usually get back to you within one business day.


What customers are saying:

"This program just saved my MacBook" - Far West

"Awesome App!!!" - david.burns

"Get it now" - codes00

"Thanks to this I discovered that my fan on my new Macbook Pro was defective." - trjras123

"It works like it said it does." - jdphil07

"Love it!!!" - Thomas Larsen

What's New in Version 4.1

• Update to TG 4.5.2 for free at

• Resolved critical issue where checking the drive temperatures (via SMART) could cause the Mac to freeze up momentarily.
• Resolved issue where potentially bogus sensors would appear.
• Resolved issue where the CSV log file would be overwritten when the app started up.
• Resolved issue where some sensors were duplicated.
• Resolved issue where it was possible to have a GPU sensor showing zero degrees.
• Added sensors from the new areas as choices for displaying in the menu bar.

Plus it also includes all the great updates from 4.0:

• Added support for MBP Retina sensors.
• Added support for more sensors including the new Logic Board area.
• Added ability to log temperatures and fan speeds in CSV (Comma Separated Values) for easy importing into Numbers or Excel.
• Misc improvements and bug fixes.


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Customer Reviews

Problems… lots of them

This can open as an app (with an icon in the Dock and in the Command-Tab menu) or as just a menu item in the menu bar, but if you want the menu-only version, then you're forced to have it start up automatically. This is kind of dumb. Why can't I toggle the auto-start function without having to first change another preference that is barely related and where there is no logical dependency? If they want to prevent (or for some reason cannot allow) opening the app as a menu item, then instead of graying out the auto-start checkbox, they should allow you to uncheck that but revert to opening as a full application when you do so. -1 star for this.

Furthermore, when I close the app I'm not in the mood to be presented with a nag screen to rate the app, or shown ads for their other apps. Very very annoying. -1 star for each of these.

Lastly, I have reason to believe the data the app is presenting is not accurate, since there are times that my laptop feel very cool, but I get endless alerts about it being too hot, while at other times it is extremely hot to the touch and there are no alerts and the reported temperature is much lower than at the times that it is wigging out over nothing. I have not absolutely verified that this apparent problem is in fact taking place, so I'm not taking away any more stars for that. I need to do more testing to make sure I'm not missing something somehow.

Great App!

I use Handbrake on my new iMac i7 to rip Blu Rays, and Handbrake really makes the CPU cores heat up, and heat up very quickly. I have faith in my Mac, but this nifty app gives me a little more peace of mind because I can actually watch the rpms of the fans increase as the heat ticks upward, and decrease as the heat drops a few notches. It takes awhile to rip a two hour Blu Ray, so this back and forth with the temp and fans gives me some comfort that everything is working properly. My only criticism is the warning that appears in the upper right hand corner of the screen. It disappears quickly, and I’m unable to read the entire message. I don’t know if that’s a Mac warning or a Temperature Gauge warning and/or message, but it would be nice to be able to read the whole thing.

Solid Informational App

No, you obviously cannot control fan speed, Apple wouldn’t allow that. But it monitors every possible sensor in a well-designed layout, with the ability to customize features to your preference: including how often it checks temp, the threshold at what temp app alerts you, and other functional adjustments. An easy $5 bucks to maintain the health of your CPU/Computer and increase its longevity. Most negative comments here are from people that don’t know what they’re doing, or complaining about a “missing feature” that is actually there, plain as day. Memory, CPU, Battery and other stuff is monitored in an easy and intuitive layout. It has a few quirks, but it’s no big deal, and a steal at $5 bucks.

Temperature Gauge
View in Mac App Store
  • $4.99
  • Category: Utilities
  • Updated: Mar 19, 2013
  • Version: 4.1
  • Size: 2.3 MB
  • Language: English
  • Seller: Tunabelly Software

Compatibility: OS X 10.6 or later

Customer Ratings

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