Screen Test is a free Android app developed by Alexey Ustenko that allows users to check and test their device's screen. It also offers the unique feature of testing and tuning your TV set using an HDMI cable and your Android device.

With Screen Test, you can easily evaluate the quality of your device's screen by displaying various colors and patterns. The app also provides information about the screen's resolution, density, and refresh rate. Additionally, you can use the app to adjust the brightness and contrast of your TV set to achieve the optimal viewing experience.

One of the most remarkable features of Screen Test is that it allows users to translate the app into their preferred language. If you encounter any issues or have suggestions for the app, you can contact the developer directly.

Overall, Screen Test is a versatile and practical tool for anyone who wants to check their device's screen or tune their TV set.