def full_name(app):
    """Builds App full_name, prepending the App with the name
    of the parent App.

    :param app: App as returned by queries.get_apps()
    :type app: dict
    :return: full name of the app
    :rtype: string
    """
    name = app['name']
    if app.get('parentApp'):
        parent_app = app['parentApp']['name']
        name = f"{parent_app}/{name}"
    return name