DisplayTester allows you to test almost every aspect of the LCD / OLED screen of your device. Using Google Cast it is possible to test the viewing quality of your TV. It is designed to allow full screen testing also on devices with function keys (hiding the function keys in ICS and later, immersive mode in KitKat and later).
Features
– Dead pixel test
– color tests
– Gamma calibration tests.
– Angle of sight tests.
– Multi-touch test.
– Show performance tests.
– Repair of burns in black and white bars that move
– Screen measures the size of the information screen

Supported Android
(4.1 and up)
Ice Cream Sandwich (4.0 – 4.0.4),Jelly Bean (4.1 – 4.3.1),KitKat (4.4 – 4.4.4),Lollipop (5.0 – 5.1.1),Marshmallow (6.0 – 6.0.1),Nougat (7.0 – 7.1.1),Oreo (8.0-8.1), Pie(9.0)

Download Display Tester Pro v 4.22 APK

Display Tester Pro-v4.22_build_116.apk