Cooling Master - Phone Cooler

Contains adsIn-app purchases
29.7K reviews
Content rating
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About this app

Professional temperature monitoring and controlling app that detects and closes heavy resource consuming apps to reduce CPU usage and lower phone temperature.

Features (Totally Free):

Real-time temperature monitoring
Monitors and logs device temp. in real time, and displays temp. change curves.

Dynamic overheating detection
Analyzes CPU usage dynamically, and detects apps that are overusing system resource to determine the cause for phone overheating.

One tap to cool down
Close overheating apps with one simple tap to reduce CPU usage.

Overheating prevention
Closes apps that are likely to cause temperature rise, and prevents the phone temperature from rising again.

The features listed above are available for free.

Please contact us at if you have any questions or suggestions.
Updated on
Sep 2, 2022

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 info and performance and Device or other IDs
Data is encrypted in transit
Data can’t be deleted
29.7K reviews
Velvet Archibeque
August 16, 2020
Most of the time the "cooler/ cleaner" apps show cute pictures of graphs, have ads and status bars that make you wait until they finish "cooling" to use your phone. Yet, your phone still feels hot and sluggish. I quit downloading them because I thought it was a waste of space. I just got a new phone and figured I would try one more time. It really does cool it off and speed it up! It makes it quicker and more smooth. Yep, this is the real deal.
279 people found this review helpful
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January 19, 2021
Ads are a bit annoying, but this app really works to cool down my phone when it's overheating! Certain apps (like Amazon) make my phone extremely hot if they are running/open in the background. I like how this app shows the temperature, as well as shows the apps that are causing your phone to overheat. It's quick and easy to use, but most importantly—it works! Almost instantly I can physically feel my phone start to cool down, and within a minute, it no longer feels hot & temp is back to normal
53 people found this review helpful
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October 10, 2021
I have mixed feeling about this app.The good new is, it DOES cool your phone in about 15 minutes, better than if you leave your phone down without the app. I was suprised and used it whenever I finished using an app that overheated my device(Galaxy s10). However, since the update, there's been a constant pop up screen whenever you turn on your phone, and you can't disable it. I downloaded a cooling app, not a wallpaper. If you could fix this, that would be great.
114 people found this review helpful
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What's new

General fixes and stability improvements.