Offgrid

A survival kit that works with zero bars.

Illustrated guides, first aid, practice drills, a supplies stockpile, tools, and encrypted messaging between phones over Bluetooth. Everything lives on your phone. Nothing is ever sent over the internet.

App Store · coming soon Google Play · coming soon

The Guides screen: first aid quick references, practice drills, and disaster guides.

Guides list — 44 guides, all on the phone

A guide for building a box-fan air filter, with a diagram — Illustrated, step by step

List of practice drills — Practice drills

An earthquake drill question answered correctly, with the explanation — Every answer explained

Comms with check-in buttons and contacts showing their status — Check in with your people

Guides

Know what to do before you need to

Disasters: earthquake, flash flood, tornado, hurricane, wildfire smoke, stranded in snow, radiation, carbon monoxide, food when the power is out, shutting off utilities.
Water, fire, shelter, navigation, signals and sanitation: from a sand-and-charcoal filter to finding north with a shadow stick.
16 first-aid quick references: severe bleeding, CPR, choking, stroke, seizures, allergic reactions and more.
Every guide is written from public sources like the CDC, Red Cross, FEMA and the US Army survival manual, and cites them.

Drills

Practice the moment, not just the facts

Ten "what would you do?" scenarios walk you through a choking friend, a deep cut, a collapse, a flooded road, a quake at home and more. Every choice explains why it's right or wrong, and links to the full guide. Your best score is kept on the phone, so you can see the skills stick.

Comms

Talk without towers

Pair in person by scanning a QR code, then message each other over Bluetooth whenever you're in range.
Messages hop between paired phones until they arrive, up to six hops, and expire after three days. Phones that carry them can't read them.
One-tap check-ins: I'm OK, Need help, On the move, Sheltering. Sent to everyone at once.
End-to-end encrypted with the Noise protocol (X25519, ChaCha20-Poly1305). Keys never leave your phone.

And the rest of the kit

Supplies, tasks and tools

Supplies

A stockpile that counts days of water and food for your household, tracks expiry dates and reminds you to rotate.

Tasks

Checklists with natural-language quick add. Share a list with someone you've paired with.

Tools

Compass, flashlight with SOS, sun and moon times, unit and bleach-dose converter, CPR metronome.

Verify it yourself

How Offgrid keeps everything on your phone

No network	Android release builds remove the internet permission, so the system refuses every connection. On iOS the app contains no networking code, SDKs or analytics.
No backups to anyone	App data is excluded from cloud and device backups. Export is the one way data leaves, and only when you ask.
Encrypted at rest	Files are sealed by your phone's own encryption whenever it's locked. Comms keys sit in the iOS Keychain or Android Keystore.
App Lock	Optional Face ID, Touch ID, fingerprint or passcode. The app blurs itself in the app switcher.
Permissions	Bluetooth, only when you turn Comms on. The camera, only the first time you open the pairing scanner; codes are read on the phone and no images are kept. That's all.

Offgrid's guides are quick references, not training or medical advice. Get trained help as soon as you can reach it.