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 • Run the gradient and touch tests on their own and export the inspection report (Pro) • Immersive full-screen tests with simple tap and back-to-exit controls • Works fully offline — no account, no sign-up • No camera, storage, contacts or location permissions • 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. Pro: no ads, unlimited use, all features unlocked. One-time purchase.