Computer application software for mobile phones and handheld computers, namely, software for enabling consumers to view properties in-person, including rental properties and non-rental properties, for enabling consumers to view properties in-person unattended by a property manager or other person, for enabling consumers and property managers to search for and view information for properties, including rental properties and non-rental properties, for providing information for properties that consumers are eligible to view, for enabling property managers to manage information for properties, locks, accounts, and billing, for communicating with consumers and property managers for in-person viewing of properties, management of property viewing, and management of property security, including rental properties and non-rental properties, for communicating with consumers and property managers for renting of rental properties, for monitoring doors and electronic locks of viewed and unattended properties, for providing geo-security features for properties, for scanning codes associated with locks for unlocking or locking the locks, for retrieving electronic keys for unlocking locks, for providing electronic keys to locks, for communicating with electronic components of door locks to unlock door locks and retrieve data from door locks, for electronically unlocking door locks for viewing properties, for opening doors of properties that consumers are authorized to view, for configuring properties for activation for unattended viewing and deactivation from unattended viewing, for requesting installation and uninstallation of locks, and for viewing lists and other information for installation and uninstallation of locks

Providing temporary use of on-line non-downloadable software for enabling consumers to view properties in-person, including rental properties and non-rental properties, for enabling consumers to view properties in-person unattended by a property manager or other person, for enabling consumers and property managers to search for and view information for properties, including rental properties and non-rental properties, for providing information for properties that consumers are eligible to view, for enabling property managers to manage information for properties, locks, accounts, and billing, for communicating with consumers and property managers for in-person viewing of properties, management of property viewing, and management of property security, including rental properties and non-rental properties, for communicating with consumers and property managers for renting of rental properties, for monitoring doors and electronic locks of viewed and unattended properties, for registering, verifying identity, and pre-qualifying consumers for unattended property viewing, for receiving property data from third party property managers, for transmitting property data to third party property managers, for configuring properties for activation for unattended viewing and deactivation from unattended viewing, for requesting installation and uninstallation of locks, for viewing lists and other information for installation and uninstallation of locks, for receiving property data from third party property managers, and for transmitting property data to third party property managers