Screen Tester: LCD & Touch
Find dead pixels, colour problems and touch dead zones before you buy, sell or repair a phone.
What it does
Colour and LCD tests
Fill the screen with solid colours to spot dead or stuck pixels, tints, uneven backlight and burn-in.
Touch screen tests
Draw over the whole screen or follow N, X and maze patterns. Any area that does not respond shows up straight away.
Brightness test
Check that the screen dims and brightens smoothly, without flicker or uneven patches.
Glass check
A guided look for cracks, chips and deep scratches, with examples of what each one looks like.
Made for buying and repairs
Check a used phone before you pay for it, or a new screen before you leave the repair shop.
Privacy
No account needed, and your test results stay on your phone. Ads are provided by Google AdMob and never show during a test.
Read the full privacy policySupport
Found a problem or have an idea for the app? Email me and include your phone model so I can look into it.
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