Auto forward to different page if user is logged in

I have a home page which gives an explanation of the site, but I don’t want my users hassled by it if they are already logged in.

Is there a way to automatically take users to a different page if they go to the home page, if they are logged in?

I found this code, and placed it into my functions.php file, but it didn’t work:

add_action( 'init', 'redirect_users' );

function redirect_users() {
    if( is_user_logged_in() && is_front_page() ) {
        wp_redirect( 'https://dev.indie-film.tv/activity/' );
        exit;
    }
}

Thanks.