Screen Test & Dead Pixel

Screen Test is a fast, no-nonsense screen tester that helps you FIND display and touchscreen problems — dead pixels, stuck pixels, backlight bleed, color banding and unresponsive touch areas. Perfect for checking a brand-new device or a used phone before you buy.

FEATURES

• Solid color sweep — full-screen red, green, blue, white, black, cyan, magenta, yellow and 50% gray to reveal dead and stuck pixels

• Gradient test — spot banding and uniformity problems across a smooth gradient

• Touch test — draw anywhere to check for dead spots in the touchscreen

• Used-phone inspection wizard — runs every test in sequence and gives you a clear pass / issue summary

• Immersive full-screen tests with simple tap and back-to-exit controls

• Works fully offline — no account, no sign-up

• Zero permissions — nothing on your device is accessed

• Bold, modern design

HONEST BY DESIGN

This app helps you FIND screen issues so you can make an informed decision. It does not and cannot repair dead pixels — beware of any app that claims it can.

Great for second-hand phone buyers, sellers, refurbishers and anyone who wants to verify a display is flawless.

Works offline.

Remove ads anytime with a one-time in-app purchase.