Fire, theft, flood, a burst pipe — when disaster hits, your payout depends on a list you were supposed to have made years ago. Item by item, with values and serial numbers. Almost nobody has it, so claims get underpaid by thousands. This is that list — built before you need it.
You pay your premiums every month for exactly one moment: the claim. And in that moment, the burden of proof is on you — not the insurer. No list, no proof. No proof, no payout. The time to build the record is the boring Tuesday before anything happens, not the worst day of your life.
A real tool, not a printable. Catalogue your home once, and it builds the proof-of-ownership document your insurer wants — automatically.
Log every item with the details that matter to an adjuster: room, category, brand and model, serial number, purchase date, what you paid, current estimated value, and a note pointing to your photos and receipts.
Adjuster-grade detailSee your total estimated value at a glance, broken down by room and by category. Instantly spot whether you're underinsured — if your contents are worth more than your policy limit, you'll know now, not after a loss.
Coverage gap checkOne click turns your inventory into a clean proof-of-ownership document — grouped by room, with serial numbers, subtotals and a grand total. Add your policy details, print to PDF or export the CSV, and hand it straight to your insurer.
Hand it to the adjusterSaves automatically · Export to CSV · Print / Save as PDF · Full backup & restore · Works on any device, fully offline
Two halves of one job. The Home Operations System keeps your house running — every system serviced and on schedule. The Vault protects what's inside it — proof of every belonging, ready for a claim. Run the home, protect the contents. Most owners end up wanting both.
Explore the Home Operations System →One payment. Yours forever. Build it room by room this weekend and never face an adjuster empty-handed.
Built by Systems makes one tool for each stage of owning a home. Add the ones that fit where you are.
The full ongoing command center — every system tracked, next-due dates calculated, repairs and documents logged for the life of the home.
View the system →Just bought the place? Get your first 12 months on rails — week-one checklist, month-by-month calendar, starter inventory and documents.
View the kit →More than one home or rental? Run every property's systems, costs and schedules from a single dashboard.
View the edition →It stores text references — a note pointing to where each photo or receipt lives (your phone's photo album, a cloud drive folder, a PDF). That keeps the tool fast, private and offline. Keep the images themselves in your cloud storage so they survive a loss; the Vault is the organized index that ties them to each item and value.
It's purpose-built for claims. It totals your value by room and category, flags underinsurance, and generates a formatted proof-of-ownership report grouped by room with serial numbers and subtotals — ready to hand to an adjuster. A blank spreadsheet does none of that for you.
Locally, in your own browser. Nothing is uploaded, there's no account, and it works fully offline. Use Backup to save a copy somewhere safe — ideally off-site or in the cloud, so your record survives the very disaster it's built for.
No. One payment, yours forever. No logins, no monthly fee.
They do different jobs. The Operations System runs your home's systems; the Vault documents your belongings for insurance. Together they cover both sides of protecting your home and what's in it.