Downloadable mobile application software for homeowners to store, organize, and access information about home mechanical systems and equipment, appliances, vehicles, and home maintenance professionals; downloadable computer software for referring home maintenance, home improvement, home mortgage, and home insurance services and professionals; downloadable mobile application software for organizing and tracking the value of home appliances, home systems, and automobiles for insurance and warranty purposes and recall notifications; downloadable software, namely, software for use in database management, electronic storage of data and electronic communication, namely, transmission of emails and instant electronic messages in the field of professional services, business engagement, work opportunities, business and worker profiles, engagement of home service professionals and other workers, performing services via the internet, and marketing of services; downloadable software for estimating and comparing the sustainability and maintenance costs of residential properties intended for personal ownership or rental; downloadable software for transacting the purchase of carbon offsets; downloadable computer software that allows users to store, view, monitor, retrieve and share information related to home inventory, home maintenance and overall home management