Does the receiver of my game file have to have the plugins I used imported or installed on their environment?

Sorry for the vague title, let me explain.
I’ve used the iTween plugin in my project and I want to send the file to my friend to check it, will they need to import the plugin to their environment as well in order for the game to work properly for them or will the plugin just come with the game file itself?

@leenash9702 If you installed the plugin to your game it should be saved with the unity game files unless the plugin is an external application.