Smartphones have many different high-tech components inside, and if one does not work correctly, it can ruin your experience of use and put it in a severe problem.

Connection drops in the WiFi or Bluetooth network, incorrect readings of the battery, or the screen not responding are some of the usual symptoms that the mobile device is not working properly. Hence, here, we will show you some applications that will tell you if your device is working correctly or not.

Also read: How to Roll Back to an Older Version of an App on Android

List of Best Apps To Check If Your Android Is Functioning Properly

All the apps listed in the article were free to download & use. So, now without wasting time, let’s explore the list of best apps to check Android devices’ health.

1. TestM Hardware

TestM Hardware

TestM Hardware is an Android app that will help you test your phone’s hardware, sensors, and every other component. The app is top-rated amongst Android users and is entirely free to download & use.

After the installation, TestM Hardware performs 20+ tests on your device to find all possible problems with the hardware and software.

The hardware test reports are easy to read, and non-technical users can understand them. If it finds any problem, it tells you about it. Regarding compatibility, TestM Hardware can perform tet on over 14,000 smartphones.

2. CPU X


CPU X is not an Android app to test hardware, but it shows you complete information about your phone, like the processor, cores, speed, model, ram, camera, sensors, etc.

It offers a few tools to test your smartphone’s ruler, compass, bubble level, and signal. You can also test your device’s functionalities like Display, Multitouch, Ear Speaker, LoudSpeaker, Microphone, Vibration, WiFi, and many other things.

Compared to TestM Hardware, CPU X is easier to use and provides more details. You can also use the app to compare device specifications.

3. Phone Check (and Test)

Phone Check (and Test)

If you are looking for an easy-to-use app to test your phone’s hardware quickly, then Phone Check and Test might be the best pick.

Phone Check and Test can quickly check cellular, WiFi, display, touchscreen, and smartphone sensors.

The app can also perform a few stress tests on your device, like the Thermal Stress test, CPU stress test, memory stress test, and more. The app is pretty helpful for phone troubleshooting and diagnostics.

4. Phone Doctor Plus

Phone Doctor Plus

Phone Doctor Plus is similar to the previous one in the article. The app brings 30 different types of tools to test your device’s hardware.

Phone Doctor Plus’s hardware and system diagnostics tools can easily find unseen smartphone problems.

Phone Doctor Plus has diagnostic tools for every purpose, from sound testing to display testing. Overall, Phone Doctor Plus is a great app to have on Android.

5. Dead Pixels Test and Fix

Dead Pixels Test and Fix

Dead Pixels Test and Fix is an application mainly known for the tests to see the status of your smartphone screen and allows you to discover if your smartphone has any dead pixels.

Hence, with Dead Pixels Test and Fix, you can repair them and recover the quality of your screen. However, the app does not guarantee to improve the dead pixels on the net.

So, if every method of yours fails to Fix Dead Pixels on your device, you can use this and try your luck. The app has many positive reviews on the Google Play Store.

6. AccuBattery


Accu​Battery is a powerful Android app that protects your battery health, displays battery usage, and measures battery capacity.

It’s one of those apps meant to troubleshoot the device’s battery problems. The app lets you monitor how much battery your device uses, how long you can use your device in active mode, how much power the app uses, and more.

The premium version of Accu​Battery lets you access historical sessions older than one day.

7. DevCheck Hardware and System Info

DevCheck Hardware and System Info

Want to monitor your hardware status in real time and get all the information about your device, CPU, GPU, memory, battery, camera, disk, network, sensors, and even the operating system? If yes, DevCheck is the perfect option for you.

The app gives you all the core information you need about your device’s hardware and operating system in a very simple, precise, detailed, and organized way.

8. GSam Battery Monitor

GSam Battery Monitor

GSam Battery Monitor is a full-fledged battery manager app for Android that provides you with a detailed overview of your phone’s battery. You can use it to check how much time you have left before recharging your phone.

Also, GSam Battery Monitor can even find and detect apps hogging your battery resources. You can easily hunt down battery-draining apps, find wake-locks, sort apps by CPU & sensor usage, and more.

GSam Battery Monitor is pretty effective in detecting battery-draining apps. Apart from that, it also lets you see the historical averages that help you to estimate the overall battery health.

9. CPU Monitor – temperature, usage, performance

CPU Monitor - temperature, usage, performance

The CPU Monitor – temperature, usage, performance- is one of Android’s most powerful CPU monitoring apps. The app lets you monitor the CPU temperature and frequency in real-time.

Moreover, the app offers tools like One Tap Boost, ram widget, CPU widget, battery widget, desktop floating window, status bar floating window, overheat alarm, and much more.

10. Taskmanager


Are you facing trouble with your apps running in the background, draining your battery, and heating your device? If yes, then give Task Manager a try.

Taskmanager allows you to manage all the apps running in the background of your Android device. You can even stop apps from running in the background with Taskmanager.

11. Testy


Testy is not very popular, but it’s still one of the best apps to check if your Android device is functioning properly. The app can be used to test all hardware features of your phone, including the cameras, antennas, and sensors.

The app is pretty lightweight, but it does show you the complete information about your device. Furthermore, the app presents the data in a beautiful graphical interface.

12. Phone Test

Phone Test

If you purchase a used smartphone, Phone Test is the first app you should install. Phone Test is an Android app that provides great tools to check all your phone functions.

The app can effectively test your phone for dead pixels, multi-touch, USB/charger cables, physical buttons, microphone, speaker, headphones, sensors, camera, etc.

Also read: 10 Best Free Android Apps of All Time

Almost all apps on the list are available on the Google Play Store and are free to download & use. So, these are some of the best free Android apps to check if every component is working properly. Let us know in the comments below if you want to suggest other apps.


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