Preparedness tools that only work while the grid does are a strange kind of preparedness. Engineered Prep installs as a real app and keeps working with no connection at all — your maps, your plans and every tool, stored on your own device.
The scenarios this site is built around — a grid-down week, a hurricane landfall, a regional evacuation — are the exact scenarios where a website is useless. Cell networks congest before they fail, and they fail early. If your evacuation routes, your water sources and your county's hazard map live in a browser tab, you don't really have them.
So the whole site was rebuilt to run from your device. Not a cut-down companion app with three features: the same maps, the same tools, the same library, on the same screens, with the network switched off.
Real vector maps of your counties — streets, terrain, and every hazard and infrastructure layer Area Recon draws, stored on the device.
All 92 calculators, planners and simulators run locally. They were always client-side; offline just makes that visible.
Threat ratings, inventories, checklists, the Digital Binder and your saved maps — the work you did when you had a connection.
Articles, guides and the Resources library, including the reference sheets you would otherwise be searching for at the worst moment.
One tap from the install page. It lands on your home screen or desktop with its own icon and window — no app store account, nothing to sideload, no permissions to grant.
Choose how far around home to cover, and how much street detail you want. The download is sized and timed before it starts, so you know exactly what you are committing to.
Airplane mode, dead cell tower, ISP outage, or a week off-grid — the app opens and works. No spinner, no "you are offline" page.
Everything on this site is free to use online — all 92 tools, every map, every article, no account required and nothing crippled. Offline is the one thing you pay for, along with syncing between your devices. That's the whole bargain, and it's why there are no ads and nothing to sell.
Nothing is wiped and nothing locks. What you already downloaded keeps working — it just stops updating, and new areas need an active membership. Your plans stay on your device either way.
You choose. A typical area — roughly 200 miles of awareness plus street detail near home — is about 30 MB of data and 65 MB of map. Both numbers are measured for your selection and shown before anything downloads.
It installs from the browser rather than a store, which means no store account, no review queue between a fix and your device, and no third party in the middle. It gets its own icon and its own window, and updates arrive the next time you're online.
Included with membership — $5 a month, cancel anytime. Thirty-day money-back guarantee on your first month.
