9 Downloadable mobile applications for finding and purchasing residential real estate, excluding any type of Smart Home devices; Downloadable mobile applications for viewing residential real estate listings, scheduling virtual or in-person tours of residential real estate, making and receiving offers on residential real estate and completing purchases of residential real estate, excluding any type of Smart Home devices; Downloadable mobile applications for viewing listings, scheduling virtual or in-person tours, making and receiving offers and completing purchases, all in the field of residential real estate, excluding any type of Smart Home devices; Downloadable mobile applications for viewing residential real estate properties, excluding any type of Smart Home devices; none of the foregoing relating to home or building automation or smart home or smart building products or services or in the fields of sustainable energy or health monitoring