Kuika's Sign In with Google action allows users to securely log in to the app with their Google account. This method allows users to log in quickly and easily using their existing Google account information, instead of entering their email address and password. When the user logs in with their Google ID, they are granted access to the system and can access all functionality within the app. In this tutorial, you will learn how users can sign in with their Google account using the Sign In with Google action.