My Display: burnin afterimage by 3456.KR is a free Android app in the Utilities & Tools category. The app quickly and easily checks the status of the display, such as burn-in of AMOLED display and afterimage of LCD display. With no ads, this app is lighter and faster than 1MB and supports automatic brightness adjustment.

In case the color test screen does not display in full screen (if the camera punch hole or blank space on either side of the notch is not displayed), there is information provided on the developer's website. My Display: burnin afterimage is a simple and useful app that can help you keep track of your display's condition.