Transparent Phone Effect Prank is a free lifestyle app developed by Just4Fun Wallpapers And Widgets for Android devices. As the name suggests, this app creates a transparent screen illusion using a semi-transparent camera view.

The app offers two different ways to experience the transparent screen effect. The first option is to set the camera view as a live wallpaper. This means that the view from your camera will be displayed on your phone's wallpaper. To run this mode, simply open the app, press "Start," and allow the app to access your camera. A live wallpaper manager will appear with a preview of the new wallpaper. Press "Set Wallpaper" to apply the transparent effect. To remove the live wallpaper mode, you can simply change the wallpaper on your phone to another one.

The second option is to display a half-transparent camera view in the foreground of all running apps. You can adjust the transparency level of the live camera view in the app's settings according to your preference. To run this mode, open the app, select "Start transparent effect in foreground" in the settings, adjust the transparency power, and press "Start." Allow the app to access your camera and draw over other apps. To remove this mode, you can either press "Turn OFF Transparent Effect" in the Android top notification bar or open the app and press "STOP CAMERA."

Please note that this app is purely for entertainment purposes and does not actually make your phone or screen transparent. It is designed to create the illusion of transparency using the semi-transparent camera view.