Thermal Monitor - Phone Temp

In-app purchases
4.87K reviews
Content rating
Rated for 3+
100K+
Downloads
Content rating
Rated for 3+
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About this app

🔥 THERMAL MONITOR

Lightweight & Unobtrusive Phone Temperature Monitor and Thermal Guardian
Is your phone heating up during heavy use or gaming?
Is thermal throttling affecting your experience or results?

Thermal Monitor helps you track your phone temperature and CPU throttling state in real-time and act before overheating impacts your results or device health.

With Thermal Monitor, you'll have a thermal guardian watching over your phone, alerting you when battery or CPU temperature spikes or thermal throttling occurs. Designed for minimal impact and optimized for gaming, this temperature monitor app features a clean, distraction-free interface with a customizable status bar icon and floating widget that stays out of your way while keeping you informed.

Key Features:
🔹 Track phone temperature and thermal throttling in real-time
🔹 Sleek, unobtrusive and customizable floating widget
🔹 Status bar icon, temperature notifications and spoken updates
🔹 No ads, no internet requirement, no unnecessary permissions
🔹 Tiny app size, ultra-low RAM & CPU usage for zero impact on performance

Your phone automatically manages overheating by throttling performance to prevent device damage. Thermal Monitor helps you to stay informed so you can take action — whether by adjusting settings, closing background apps or using an external GPU and CPU cooler.

Premium Features:
⭐ Extended floating widget customizations – choose background and foreground colors, opacity and what icons and data to show
⭐ Customize the notification icon – indicate throttling, temperature or both
⭐ Select temperature sensor – battery temperature, CPU temperature, GPU temperature or other ambient temperature sensor (sensor availability is device dependent)
⭐ Multiple temperature monitors in floating widget, e.g. battery + GPU + CPU temperature (not available in all devices)
⭐ Enhanced precision – choose update interval and extra decimal for more accurate readings
⭐ Temperature and throttling warnings – get notified when your phone temperature or performance throttling reaches critical levels

Please note that you should always be able to rely on the throttling info provided by the operating system and shown in the app. Some devices allow for direct GPU and CPU temperature monitoring, but unfortunately not all. All devices will however report the battery temperature and thermal throttling state, which is still a great indicator for whether your device is overheating or cooling down (can be verified with a CPU load generator). All temperature monitor apps read the same phone temperature data made available by the operating system. This is why we focus on giving you the best user interface, customization options and means to optimize for either accuracy or low impact on performance and battery usage.


❄ Stay cool & game on!
Monitor your phone's temperature with an unobtrusive widget to avoid throttling
Updated on
Sep 21, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    App activity
  • Data is encrypted in transit

Ratings and reviews

4.71K reviews
Daggett Beaver
September 2, 2026
Fantastic app, particularly the extended temperature precision with throttling indicator in the notification area - got the premium upgrade right away. It would be great though if these values were also displayed on the lock screen (they don't appear despite all necessary permissions)...
3 people found this review helpful
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Rollerbush
September 2, 2026
Thanks for your review and feedback! Lock screen info is actually an app design choice from devs. We have tried this but also concluded that it's quite problematic to combine "locked sleeping phone" with "frequent updates". Basically, users would have to accept that the info shown is likely old.. 🫤 Believe we can explore this more though.
Joseph Yousefi (Joey)
September 18, 2026
Great app, but why isn't an option to place an app widget on home? And there should be an option to automatically turn on floating widget when opening certain apps like games. I don't want to manually turn it on every time I play games. The only two things holding this app back from being 5 stars.
2 people found this review helpful
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Rollerbush
September 18, 2026
Thanks for your review and helpful feedback! We simply haven't built such a home screen widget yet as we went for the floating overlay variant instead (covering much of the same use cases but adds lots more, especially in-game). Autostarting the widget requires launcher influence. BUT, we have a game launcher 🙂 and this feature will be added there
Carlo Cruz
September 8, 2026
best free thermal monitor with floating icon displayed over any other app. main sensor battery is available in free tier and cpu gpu can be unlocked in paid. lightweight and no other unwanted functionality unlike other advertised apps
2 people found this review helpful
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What’s new

• Added option to show temperature labels in widget (premium)
• Added option to include temperatures from all sensors in notification (premium)
• Widget background opacity is now available for all users
• Several smaller UI improvements