5 apps to test a phone's touchscreen before buying it

Display issues like dead pixels or tactile areas not only affect the user experience, but are also expensive to repair. Therefore, you should always make sure that the screen is working properly when purchasing a used device. In this article, let's take a quick look at five apps that will help you test the touchscreen of any Android phone.

Apps for testing the touchscreen on Android phones

1. Touch screen test

Touch Screen Test is a simple app that checks if your Android phone's screen is faulty. Using the same, you can test if all areas of the screen are equally sensitive and respond to touch.

All you need to do is install the app, start the test, and draw all the dots with your finger. This will make them green, which means the screen is working fine. However, if a particular grid isn't working, it could be a sign of sensitivity issues or dead spots.

This way you can find possible dead zones on your phone screen.

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2. Multi-touch tester

As the name suggests, Multi-touch Tester allows you to test the multi-touch capabilities of your device's screen. You can tap with all of your fingers to see how many fingers the device can detect at the same time. Usually, most Android phones support a five-point touchscreen.

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3.Screen Test Pro

Screen Test Pro is a full-fledged app for testing your phone's display. It allows you to check the screen color performance, dead pixels, saturation and white balance. It even has a grayscale test and a built-in multi-touch detector.

In addition, the app displays display parameters including screen size, number of pixels, density, etc. There is a separate section that shows all the sensors supported by the device.

If you are buying a used phone or want to test your own device for screen issues, install the app and launch it.

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4. Display tester

Display Tester offers much more functionality with developer tools for in-depth testing. Pixel detection is faulty, tests bands, contrast and saturation, then gamma detection.

You can check the viewing angles of the phone and whether it can handle wide gamut colors well. It also makes some useful additions to the table, including “Fix break-in” and actual reference images to compare the screens of two phones.

Interestingly, the app supports Chromecast, which means you can share the screen to test the quality of your TV's panel.

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5. Backlight purge test

Some phones have screen leakage issues which are hardware related and cannot be fixed through software. You can check the same on any phone using the backlight test app.

Launch the app and inspect the edges of the screen for backlight bleeding. You can increase and decrease the brightness levels using the volume rockers. Colors can be changed via the sliding menu on the left.

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So here are some apps that will help you test a phone's touchscreen before buying it. You can also use them to troubleshoot common display issues on your device. Either way, when shopping for a used phone, don't forget to test out other hardware features like connectivity options and onboard sensors.

Also Read- How To Check Display Refresh Rate On Android 11