Home inventory is about what the home has
A practical inventory remembers appliances, systems, model numbers, serial numbers, rooms, label photos, and linked supplies. Insurance-style inventories may also track valuables, but that is a different depth of catalog.
Home maintenance is about what the home needs
Maintenance apps focus on recurring work, reminders, seasonal checklists, completed tasks, and repair history.
The useful overlap
The best day-to-day system connects the two. A maintenance reminder is better when it knows the equipment record. An equipment record is better when it links to supplies, tasks, and history.