Days of Supply

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Days of Supply

How long would you really last? Photograph a label and this works out your days of food, water and fuel.

How long would this last?

Worked out from who's in your household and what's actually on the shelf. Water is usually the surprise.

If disaster hit

Pick what kind of emergency and how long. It works out what still works at your place, what doesn't, and what runs out first.
Temperature outside right now
°F
For how long?
These drive the fuel maths. The generator defaults are typical for a mid-size portable unit — check the plate on yours if you want it exact. The gas questions matter because piped gas usually keeps flowing in a power cut, but most gas appliances still need electricity to run.

Add an item

One photo is usually enough — get the front label with the date stamp in frame if you can. If it can't find a date, just type it in on the next screen. Turn off auto-read when you want to add a second close-up before analyzing.
Send a label photo to Claude in your chat conversation, then paste the code block it gives you back here. Tell Claude how many you have and it'll include a "quantity" in the block.

By category

Storage targets

Household

Family members, their ages, and pets. Ages decide how much food and water you need, and which starting kit each person gets.

72-Hour Kits

What each person and animal carries out the door. Measured against a target list, so it tells you what's missing as well as what's expiring — and flags a kit when a child grows into a different one.

Vehicle Kits

What lives in each vehicle. Different list from a go-bag — this one is about getting the car moving again, or staying warm in it. One kit per vehicle, and the seasonal add-ons swap out twice a year.

How this place runs

Power, water, gas and heat for the property you're viewing. The outage planner uses these to tell you what actually keeps working when the grid goes down.

Power

The cabin

Water

Weather here

Gas and heat

Log the RV's propane cylinders as fuel items so the outage planner counts them for the stove, fridge and furnace.
The generator is just below, in its own card.
Answers save as you go. Tap Done when you’re finished.

Your generator

Tell it what you actually have, and the outage planner works out how long your fuel lasts. A whole-home unit on natural gas is counted very differently from a portable on a few gas cans.
Use the exact figure from my manual

Fuel on hand

Tap the minus and plus, or type the number. It saves by itself, and the outage planner counts it straight away.

Home Readiness

The shelter-in-place side: generator, fuel, heat, light, sanitation, tools. These don't get outgrown, they get neglected — so gasoline, bleach, batteries and the generator itself carry a service interval rather than a printed date.
Two things to get right before you need them. Run a generator outdoors only, at least 20 feet from any door, window or vent, and never in a garage even with the door open — carbon monoxide kills people every winter, and it gives no warning. Keep a working CO detector on each sleeping floor. For light, use battery or LED lanterns rather than candles; open flame during an outage is a leading cause of house fires. If you do burn candles, use a wide-based holder on a hard surface and never leave one in a room you've left.

What can I make?

Recipes built from what's already on your shelves, starting with whatever needs using up.

Inventory

Good = more than 6 months out · Use soon = within 6 months or no confirmed date margin · Expired = past estimated date · Needs a date = no readable date on the label, so add one and this can track it.

Shopping list

Built from what's below its minimum, what's missing from kits, what's due for rotation, and what's about to expire. Tick things off in the store — it works with no signal — then press Add what I bought and the ledger updates itself.

Reminder emails

An email digest of what's expiring, what's due for rotation, and what's missing from your kits. This is the part that works while you're not thinking about it.

Print a list

Paper copies for the closet door, the clipboard and the glovebox. The app is no help when the phone is dead.

Medicine & first aid

Food and water get the attention, but medication is what actually runs out first in a long disruption. Enter what's on hand and how many doses a day, and this works out the days per person.
The way to build a buffer is a longer fill, not smaller doses. Ask your pharmacy about a 90-day supply or mail order, and ask your prescriber about an emergency supply — many states allow emergency refills during a declared disaster. Never stretch a prescription to make it last; for anything like insulin, heart medication or an anticonvulsant that's more dangerous than the shortage. This app only counts what you enter. It doesn't advise on doses or on how much to keep — that's between you and your prescriber.

Hunting & fishing

Everything else here is a finite pile that only goes down. This is the one thing that adds days back. Ammunition, tackle and — the part people forget — a way to keep the meat.

Animals

Hens, goats and a family cow keep making food for as long as they're fed and watered. They also drink far more water than people do, and that counts against your supply too.
Add animals
A small square bale of hay is about 50 lb and a bag of feed is usually 50 lb. Leave the last box empty to use a typical figure. These are planning numbers, not advice; your vet or the USU Extension office can tell you what your animals need.

Licenses & documents

A rusty can you can see. An expired passport you can't. Each document carries its own renewal warning, because a hunting license takes a week and a passport can take two months.

Users

Who can sign in and help keep your supplies up to date, and which of your places each person can see.
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Your places

Your home, and a cabin, RV or second home if you have one. Each place keeps its own supplies and its own days of supply.
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Account

Backup

This is a snapshot of the shared database, in case you ever need to move it or recover from a connection issue.