Tunabelly Software

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TG Pro 2.8.8

Keep your Mac cool. Control fan speeds, monitor temperatures and find faulty sensors.

Special promo: Add Disk Diet to clean your Mac's drive.

Compatible with Mac OS X 10.7 - 10.11 (El Capitan)
Already have a license and need to download TG Pro? Click here.

Take a look at what's going on inside your Mac with TG Pro - no other app shows more temperature sensors or has as many options for notifications and fan speeds.

Find out which components are getting hot (and potentially overheating), turn up the fan speeds to cool down your Mac, get notifications for temperature alerts along with many other fantastic features. Plus, see if any sensors or fans are defective with the built-in hardware diagnostics.

See why thousands of people trust TG Pro as the go-to app for temperatures and fan control. Try the free trial today.

An in-depth TG Pro tutorial is also available to help get you started.
This is the Rolls Royce of fan control and temp monitoring apps.
MacUpdate Review from Ryans
TG Pro is really great. After the fan on my brand new 2015 MacBook Pro failed, I bought it to keep an eye on it.
Wassim J.
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Of the very few number of Mac apps which monitor temperature and manage fans, TG Pro is the one I prefer.

Jeffrey Mincey from mac360.com

TG Pro helped diagnose a problem I suspected I was having with my fans and it was helpful to have it confirmed.

Mac App Store Review from Ylanthe
See the current and maximum recorded temperatures (in Celsius or Fahrenheit) for every temperature sensor in your Mac.
View and control the speeds for every fan. With Auto Boost, have the fans go to a specific speed when a predefined temperature is hit.
Always available status icon menu includes all temperatures, fans and manual controls.
Show a notification if a sensor or the Mac gets too hot, or when the fans are turned up with Auto Boost.
Monitor remote servers by having an email sent instead of a local notification.
Discover faulty fans and temperature sensors with the built-in diagnostics.
Log all temperatures, fan speeds, diagnostics and notifications to a CSV file.
Run in the background with configurable info displayed in the menu bar.
Supports all Macs, including the new Mac Pro 2013 model as well as all MacBook Pros (including 2015 models), iMacs, Mac Minis, MacBook Airs and older Mac Pros.

Click here to see what's changed in TG Pro 2.8.8 (October 23, 2015) and previous versions

  • [New] Improved support for the 15" "2015 MacBook Pro graphics temperatures.
  • [New] Improved the user experience on first launch.
  • [New] App analytics (anonymous things like os/app version, etc.) can now be turned off in the preferences.
  • [Fixed] Sequential numbering of memory sensors on certain Mac Pro models.
  • [Fixed] Updated Paddle framework which resolves a potential crash on app startup and the licensing window not closing on El Capitan.
Version 2.8.7
  • [New] Improved compatibility with El Capitan (10.11), including when installing future updates.
Version 2.8.5
  • [Fixed] Potential issue where the license might not be stored properly.
Version 2.8.3
  • [Fixed] Potential crash when showing the main window on OS X 10.7 and 10.8.
  • [Fixed] Issue where the fan helper might not install properly.
  • [Fixed] Issue when running on OS X 10.11 (El Capitan).
  • [New] Improved shutdown code descriptions.
  • [New] Icons for some of the preference tabs.
Version 2.8.3
  • [Fixed] Issue that was causing custom support for the 2015 MacBookPro 15" and 2013 MacPro models to not work.
  • [Fixed] Issue relating to showing a log file error dialog when a custom folder was used.
Version 2.8.2
  • [Fixed] Issue where the AMD Radeon GPU would always show N/A (on 2015 MacBook Pro 15").
  • [Fixed] Reduced number of file accesses when checking if the trial is over.
  • [Fixed] Only show a log file error dialog once.
  • [New] Improved and more accurate naming of temperature sensors.
  • [New] Improved numbering when there are multiple temperature sensors of the same kind.
  • [New] Improved support for MacBookPro11,5 models (2015 MacBook Pro 15")
Version 2.8.1
  • [New] Mac Pro relative (prochot) CPU sensors are now in a separate area and not included in temperature averages.
  • [New] Added link to the new TG Pro app tutorial.
  • [Fixed] Potential issue where GPU temperatures could be incorrect (on 15" 2015 MacBook Pros).
  • [Fixed] Issue where the AMD Radeon R9 M370X would always show N/A (on 15" 2015 MacBook Pros).
  • [Fixed] Duplicate fans in the preferences popup.
Version 2.8
  • [New] All sensors are now available for Auto Boost rules. Now it's possible to link a fan increase to a particular sensor.
  • [New] If a fan is defective, a help popover is visible to describe what that means.
  • [New] Added a menu item to manually re-install the fan helper app.
  • [Fixed] Only show a shutdown notification once per machine restart.
  • [Fixed] Hide the battery Auto Boost rules on Macs where there isn't a battery.
  • [Fixed] Issue where it was possible to get a notification for an abnormally hot Intel Iris Pro sensor.
  • [Fixed] Issue where it was possible the app would quit when switching from normal to background mode.
  • [Fixed] Duplicate prompts to install the fan helper app.
  • [Updated] The UI of the diagnostic section.
Version 2.7.4
  • [Fixed] Issue where Auto Boost fan speed would always increase.
  • [Improved] Reliabilty of temperature validation.
Version 2.7.3
  • [Fixed] Issue where Auto Boost fan speed would go above what was set in the preferences.
Version 2.7.2
  • [Fixed] Fan control issues with 2015 MacBook Pros.
  • [Improved] Further reduced the amount of console logging.
Version 2.7.1
  • [New] Fan control support for 2015 MacBook Pros.
  • [New] Added preference to allow an empty password for email notifications.
  • [New] Added preference to toggle extra console output.
  • [Fixed] Preferences window no longer closes when switching to background mode.
  • [Improved] Reduced the amount of console logging.
Version 2.6
  • [UPDATED] Many new temperature sensors + better naming for 2013 Mac Pro.
  • [UPDATED] Improved names for battery temperature sensors.
  • [FIXED] Resolved issue where switching between power sources could cause Auto Boost to not work.
  • [FIXED] Resolved issue where it was possible that Auto Boost would not start.
  • [NEW] Added extra minimum fan speed safeguard./li>
  • [UPDATED] Main window area icons invert when clicked./li>
Version 2.5.1
  • [FIXED] Ambient sensor on iMacs now shows the correct temperature.
  • [UPDATED] Paddle framework to resolve issues with activations + misc bug fixes.
Version 2.5
  • [FIXED] Potential crash when updating drive temperatures using SMART.
  • [NEW] Added menu item for registering TG Pro during the trial.
  • [UPDATED] The Paddle framework to resolve minor issues.
Version 2.4.3
  • [NEW] Added options for SMTP port and connection type for email notifications.
  • [NEW] Filling in the email username will auto fill the server, port and connection type for most addresses.
Version 2.4.2
  • [FIXED] Issue when moving TG Pro to a different Mac that has less fans.
Version 2.4.1
  • [FIXED] Checking drive temperatures with SMART now works on more Mac models.
  • [FIXED] Potential crash while logging.
  • [FIXED] Potential crash if the fan helper app connection is invalid.
Version 2.4
  • [UPDATED] Lower CPU usage, especially when the main window is visible.
  • [FIXED] Potential crash when Auto Boost is running.
  • [FIXED] Minor memory leak.
Version 2.3.1
  • [FIXED] Crash when clearing the percent text field for an Auto Boost configuration.
  • [FIXED] Potential crash when Auto Boost was running.
Version 2.3
  • [NEW] Added ability to send crash reports directly from the app.
  • [NEW] Added OS X version and model to feedback emails.
  • [FIXED] Auto Boost can now decrease fan speeds.
Version 2.2.2
  • [FIXED] Launching on Lion (OS X 10.7)
  • [FIXED] Potential hang when sending an email notification.
  • [FIXED] Status menu fan button being on when Auto Boost is enabled.
Version 2.2.1
  • [FIXED] Issue with fan control potentially not working.
  • [FIXED] Possible crash on startup.
Version 2.2
  • [NEW] Added active GPU name to the status menu.
  • [NEW] Added ability to have email notifications. This is a great new feature for remote server monitoring.
  • [FIXED] Status menu and icon in Yosemite dark mode.
  • [FIXED] Updated diagnostics string when there is one or no fans.
  • [FIXED] Ranges of Fahrenheit converting incorrectly to Celsius.
  • [FIXED] Reduced number of console messages.
  • [UPDATED] PCI, Northbridge and GPU area icons.
Version 2.1
  • [NEW] Fan control is suspended when the Mac sleeps and restored on wake.
  • [FIXED] Manual fan control switch is turned off when fan Auto Boost is active.
  • [FIXED] Fan Auto Boost configurations changes take effect without an app restart.
  • [FIXED] Fan Auto Boost configurations are only used once editing is finished.
  • [FIXED] Fan Auto Boost algorithm works properly for low percentage values (ex: 10%).
Version 2.0.2
  • [FIXED] Manual fan control switch in the status menu updates in sync with the one in the main window.
  • [FIXED] Using every day log option on systems where the date has slashes in it.
  • [FIXED] Auto Boost sometimes not turning on when on battery power.
  • [FIXED] Prompt for launching on login was appearing every time the app started in rare cases.
Version 2.0.1
  • [FIXED] Send anonymous report preference is now working correctly.
Version 2.0
  • [NEW] Support for Mac Pro 2013 models.
  • [NEW] More sensors for almost all Mac models.
  • [NEW] Completely re-designed status menu. It now includes all temperatures and fans, plus manual controls.
  • [NEW] Completely new options for fan Auto Boost. Choose the fan percent, temperature to trigger, the type of trigger and whether it’s for plugged in or battery power.
  • [NEW] Added ability to link fan speeds when using manual control.
  • [NEW] Added ability to choose the location of the log file.
  • [NEW] Added ability to de-register a license.
  • [NEW] Added preference to adjust the gradual time for Auto Boost control.
  • [NEW] Added preference for how often a new log file is created.
  • [NEW] Added preference for global hot keys to show main window and turn manual fan control on/off.
  • [NEW] Added diagnostics to log files.
  • [UPDATED] Significantly better naming of some sensors.
  • [UPDATED] Better descriptions for common shutdown codes.
  • [UPDATED] Better numbering of sensors where there are multiple ones of the same type.
  • [UPDATED] Completely re-designed preferences UI.
  • [UPDATED] Updated sensor area icons.
  • [FIXED] Discrete GPU will now show “N/A” when it’s been turned off by the OS.
  • [FIXED] Columns no longer shift when the discrete GPU is turned on/off by the OS.
  • [FIXED] Faster app startup.
  • [FIXED] Less console noise on app startup.
  • [FIXED] Removed some duplicate sensor names.
  • [FIXED] TGFanHelper app now uses less file handles.
  • [FIXED] Clicking a notification will show the main window.
  • Version 1.8.4
  • Updated for Mac OS X 10.10 (Yosemite) compatibility.
  • Version 1.8.3
  • Resolved issue with the message in the diagnostics when the shutdown code was STOP_CAUSE_INIT_CODE.
  • Version 1.8.2
  • Resolved issue with a notification when the shutdown code was STOP_CAUSE_INIT_CODE.
  • If a bad fan is detected, an expanded name is used. Ex: “ODD” becomes “Optical Disc Drive”.
  • Less console logging when fan speeds are adjusted.
  • Version 1.8.1
  • Resolved issue where temperatures would only log as Celsius.
  • Resolved issue where HD temperatures would not be logged.
  • Updated Paddle framework.
  • Version 1.8
  • Added preference to show the main window when Auto Boost is active.
  • Fan status icon is now orange when there is an issue with a fan.
  • Version 1.7
  • Resolved potential crash on launch.
  • Resolved potential crash when checking drive temperatures.
  • Resolved issue with sensors in the LCD area.
  • Resolved issues related to showing drive temperatures in the status bar.
  • Log file is only created if logged is enabled.
  • Updated the name of the TCGc sensor.
  • Version 1.6
  • Added support for gradual fan speed increases with Auto Boost.
  • Resolved issue where the manual fan speeds would not be restored when waking from sleep or a system restart.
  • Move to Applications folder on first launch.
  • Version 1.5
  • Resolved issue with manual fan settings when waking from sleep.
  • Work around for bug in Mavericks (10.9) when showing the trial window.
  • Log file is called TG Pro Log.txt.
  • Version 1.4
  • Clearer fan Auto Boost notification text.
  • Reduced the size of the app.
  • Improved the trial and purchasing experience.
  • Version 1.3
  • Resolved crash the fan or sensor diagnostics showed an issue.
  • Improved the trial and purchasing experience.
  • Version 1.2
  • Resolved potential crash when enabling fan control.
  • Switching to Fahrenheit shows the correct temperatures in the Fan preferences.
  • Fan control sliders will properly resize when the window width is small.
  • Fan alerts can be turned off.
  • Auto updater works.
who we are
Tunabelly Software Inc. is a Canadian software development company run by Matt Austin.
contact us
what we do
Make amazing Mac OS X apps.