MyMacIsHot
Know when your Mac throttles
One-time purchase · macOS 15 or later
- Price
- $4.99 one time
- Category
- Utilities
- Requires
- macOS 15 or later
- Size
- Under 1 MB download
- Developer
- Snugbits indie
I'm chilling 48°
No throttling. Running at full speed.
MyMacIsHot puts a small face in your menu bar that shows how your Mac is coping with heat. When macOS slows the processor down to cool off, which it normally does without a word, the face changes and you know why everything suddenly feels sluggish.
It is for anyone who has felt their Mac drag during a long export, a big build or a busy afternoon and wondered whether the app or the heat was to blame. One click opens the details: temperature, fan speed, a ten-minute history and how long you have spent throttled.
Most temperature apps hand you a number and leave the guessing to you. MyMacIsHot reads the thermal pressure level that macOS itself acts on, so it tells you when throttling is really happening, not just when a sensor runs warm. Its thermal sensor code is adapted from MacThrottle, the open-source project by Stanislas Lange.
Thermal pressure
It knows when heat is costing you speed
A temperature on its own can mislead you: 92° may be perfectly fine, while 84° may already be too much. MyMacIsHot reads the same pressure level macOS uses to decide when to slow down, so the face changes when your speed does.
- Heavy pressure is the point where throttling begins
- The simplified public signal reports Moderate and Heavy as the same state
- The two rare, extreme levels are grouped together as Critical
I'm sweating
Throttling right now. Things are slower.
Throttled: running slower
Throttling has begun, yet the public shortcut still says Fair, exactly as it did a level earlier. MyMacIsHot reads the full level, so it notices.
Tap a pressure level to compare.
The panel
Click the face for the full story
One click opens a compact panel: the current temperature, how hard the fans are working, the hottest moment of the last ten minutes and how long your Mac has spent throttled. A graph shows how it got there.
Throttled
How much of the last ten minutes your Mac spent slowed down, as a time and as a share of the window. A clean window means no throttling at all.
Tap any part of the panel to see what it tells you.
Notifications
Speaks up only when it matters
Choose which changes deserve a notification. You hear about it once when throttling starts or turns severe, not over and over while it lasts.
- Alerts for throttling and critical heat are on from the start
- Recovery alerts and sounds stay off until you want them
- Show the temperature next to the face if you like
Settings
Menu Bar
Tell Me When
Sensors
The hottest core, straight from the hardware
MyMacIsHot reads every processor and graphics core temperature from the System Management Controller, the chip that looks after your Mac’s sensors and fans, and reports the hottest one. If that read ever fails, it switches to the backup power management sensors.
- Fresh readings every two seconds
- Fan speed in RPM and as a share of the maximum
- Fanless Macs simply skip the fan readings
Efficiency cores
Performance cores
Graphics
MyMacIsHot reports
91°
Sensor Tp09 SMC key
The average of all 14 sensors is 58°. An average would hide the hot spot.
Pick a workload. The hottest sensor is the one that counts.
Features
A face in your menu bar
A calm, monochrome face while all is well. It takes on colour the moment heat starts to matter.
Real throttling detection
Reads the thermal pressure macOS acts on, so you know when your Mac is truly being slowed.
Temperature and fans
The hottest core temperature, the sensor it came from, and fan speed in RPM.
Ten minutes of history
Temperature, fan speed and thermal state on one graph, plus your total time throttled.
Thoughtful notifications
Optional alerts when throttling starts, turns critical or clears. Sound is up to you.
Light by design
No admin password, no helper, no background service. Under 1 MB, and it can launch at login.
Pricing
Pay once. No subscription, no account.
MyMacIsHot
$4.99
one-time purchase
One payment. No subscription, no account.
- License key shown after checkout and sent by email
- Universal: Apple silicon and Intel
- Signed and notarized by Apple
Payments are handled by Dodo Payments, the merchant of record.
Questions
What is thermal throttling?
When your Mac gets too hot, macOS lowers the processor’s speed so it produces less heat. It happens quietly, so apps simply feel slower. MyMacIsHot tells you when it is happening.
Which Macs does it work on?
Any Mac running macOS 15 Sequoia or later. It is a universal app, so it runs natively on both Apple silicon and Intel Macs.
Does it need an admin password or special permissions?
No. There is no helper tool and no background service to install, and it reads the sensors your Mac already makes available. The only thing it asks for is permission to show notifications, which you can decline.
What does it show on a Mac without fans?
Everything except fan data. On a fanless Mac, such as a MacBook Air with Apple silicon, the fan tile and the fan line on the graph are simply left out.
Does any of my data leave my Mac?
No. MyMacIsHot has no account and makes no network connections. Its readings stay on your Mac, and its history only covers the last ten minutes.
How does buying work?
You pay $4.99 once, with no subscription and no account. When payment completes you return to the MyMacIsHot website, which shows your license key, and a copy is sent to your email.
How do I install it?
Drag MyMacIsHot into your Applications folder and open it. It is signed and notarized by Apple, so there are no Terminal commands and no security warnings.
Where does the sensor code come from?
The thermal sensor code is adapted from MacThrottle, an open-source project by Stanislas Lange, and is used under the MIT License. The face, the panel and the design are new.
