What is the difference between launchscreen.storyboard and main.storyboard

Question

I googled the two word together but could not find anything. I have never used it. Is there any necessity for it although we have main.storyboard.

Answer 1

When the app is being running in the Simulator/iPhone the 1st screen which is loaded in the memory after the user click the app icon is LAUNCHSCREEN.STORYBOARD and after the app is fully loaded, this is the time where MAIN.STORYBOARD comes into play, this is the screen which is editable you can add actions, outlets , other screen inside a View Controller, so the main work is being done inside MAIN.STORYBOARD and LAUNCHSCREEN.STORYBOARD is being used to display something static while the app gets fully loaded.