Cool Tool - system stats

Contains ads
7.24K reviews
Content rating
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About this app

This utility allows you to monitor a various system info in "always on top" floating window (overlay mode).
Available features:
- CPU Usage meter
- Free RAM meter
- CPU Frequency indicator
- 2g/3g/Wi-Fi Traffic meter
- Battery Level
- Battery Temperature
- Battery Current (mA)
- Wi-Fi Signal Level
- I/O Activity
- Time/Date indicator
- GSM Cell Signal Level (Samsung Galaxy S2 and Galaxy Note are not supported due to firmware bug!)
- Number of fixed GPS satellites
- SD Card free space
- Most resource-intensive processes
- Task Killer
- Audio VU and visual equalizer
- CPU temp on some devices

Also there is nice real time graph on background.
Press Show Panel button to enable dashboard. You can drag floating window over the screen or double tap to open settings. See video and screen-shots for details.

This application allows you to:
- Easy diagnostic problem processes that consume resources excessively.
- With Cool Tool you can monitor full-screen applications (games, video players, browsers).
- Monitor your Internet traffic without closing the browser window.
- Make your battery level always visible, with accurate percentage scale.
- Monitor how good your CPU governor switches between CPU frequencies in idle/stresses

Customize the appearance of the panel using color picker dialogs. Also you can adjust transparency and size of the panel in Sliders section.
Tons of gauges could drain your battery very quickly. Uncheck the features that you do not need. Btw, Cool Tool went to sleep and do not draw anything when your display turns off. It is for power save.

ps: If you want to help me localize app into your native language, let me know.

Read FAQ for more details:

Please note!
GSM signal strength is not supported on Samsung Galaxy S2 and Galaxy Note due to firmware bug!

Required permissions:
RECEIVE_BOOT_COMPLETED - Run on Startup feature
SYSTEM_ALERT_WINDOW "Stay On Top" feature
INTERNET & ACCESS_NETWORK_STATE - Ad banner and cloud backup
ACCESS_WIFI_STATE - WiFi Signal determine
VIBRATE - haptic feedback
Updated on
Jul 20, 2020

Data safety

Developers can show information here about how their app collects and uses your data. Learn more about data safety
No information available

Ratings and reviews

6.57K reviews
A Google user
July 20, 2019
Great app! Would be better if it had the option to be a widget or a side loading drawer or even a persistent notification with a couple of starts always in the notification tray, just so it's not always in the way of other apps. Certain apps, this always being on top is great. But for other apps, it gets in the way. just those options would be awesome
7 people found this review helpful
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Kenneth-Raymond: Cox
July 1, 2023
If you get the pro version you get no more ads. So search for cool tool Pro. I'd like to be able to reposition the temperature reading in the status bar more than center. Otherwise this is an excellent. I gave the school to Pro app five stars.
1 person found this review helpful
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Leonard Liu
June 5, 2021
10 thumbs up!! This has been the most essential tool for monitoring hardware. It has Guages such as: wifi, cellular strength, gps, CPU, Battery level, temperature, I/o, current (mAh), audio VU, network, network traffic, ram, SD card, storage. The tool can be resized, repositioned, and offers color customization. This tool is essential to monitor your device! I've used this for 10 years since android 2.3 gingerbread days. WISHLIST; Please add GPU meter! :)
3 people found this review helpful
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What's new

fixed clicks through window on Oreo+ devices
To make window transparent for touch interactions: disable drag'n'drop, disable context menu in the settings