What is Home Inventory?
Home Inventory, a Mac App Store editors' choice, is a critically acclaimed and easy to use app for creating catalog of your possesions using your Mac
It seems like this app is being replaced by Under My Roof (same developer) with added support for iOS and a new UI. "After 16 years, Home Inventory will continue to be supported but will not receive new features."
Home Inventory Screenshots
Home Inventory information