Offline Reference Tool

The brain you take when
the grid goes down

Torque specs. Medical triage. Field repair. All offline.

Get SurvivorOS How It Works
Field Repair

My Husqvarna 455 won't start after I cleaned the carb. Rich or lean?

Medical

Heat stroke vs. heat exhaustion — how do I tell them apart out here?

Foraging

Yellow pores, white ring under cap — is this chanterelle or false gill?

Choose your path

Three ways to get offline.

From free scripts to a plug-and-play appliance — pick the tier that fits your situation.

Build
The installer script runs on any Raspberry Pi OS machine. Roll your own hardware, your own case, your own power setup.
Free
  • One-line install command
  • Works on any Pi 5 (you source the hardware)
  • Full Docker Compose stack included
  • Community support via GitHub
View on GitHub
Most Popular
SD Card Image
Flash it. Boot it. Connect your iPhone. Ask it anything. Everything you need on a 64GB card — no setup scripts, no terminal.
$39 / digital
  • Pre-imaged 64GB SD card (or .img download)
  • 8B offline reference model + offline Wikipedia & WikiHow
  • Works the moment it boots — no configuration
  • 5W power draw — runs 100+ hours on a 100Ah battery
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Coming Soon
SurvivorBox
Pre-built, pre-configured appliance in a rugged enclosure. Plug in the power, connect your phone. The whole system in a box.
$149 / pre-order
  • Raspberry Pi 5 + enclosure + 64GB card
  • Auto-starts every time — no login, no terminal
  • Designed for field conditions
  • Domain packs ready (Phase 2 add-ons)
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What you get

Everything works offline.
No exceptions.

SurvivorOS is a complete offline reference platform — not a web app, not a subscription, not dependent on anyone else's infrastructure.

🤖
Ask it anything
An 8B offline language model for natural-language Q&A. It doesn't search the web — it knows things, offline, on your device.
📚
Offline library
Wikipedia, WikiHow, and Stack Overflow via Kiwix — browsable alongside chat, no internet required. Verify what the model says, every time.
⚡
5W power draw
Runs 100+ hours on a 100Ah 12V battery. Leave it on for a weekend. A week. A deployment. It doesn't phone home, so it doesn't burn power doing it.
📱
iPhone friendly
Connects over WiFi like any other network. Open Safari. That's it. No app to install, no account to create, no configuration.
🔒
No telemetry
100% offline. Zero analytics. Zero cloud. Zero telemetry. Your data stays on your device, always, under your control.
🔄
Domain packs
Specialized knowledge add-ons — wildfire, medical, marine, mechanical. Coming in Phase 2. Sold as one-time purchases, not subscriptions.

Good question.

Why not just use Starlink?

They're complementary. Starlink fills the sky. SurvivorOS fills the gaps.

Monthly cost
SurvivorOS — $0 Starlink — $150/mo
Power draw
SurvivorOS — 5W Starlink — 40W+
Works in tree canopy
SurvivorOS — anywhere Starlink — LOS required
Single point of failure
SurvivorOS — none Starlink — satellite & gov
Bottom line: Starlink fills the sky. SurvivorOS fills the gaps — the canyon, the fire zone, the backcountry.

Questions

Before you buy.

How fast are responses on a Raspberry Pi 5?
Expect 20–40 seconds for a typical answer on the Pi 5 8GB. This isn't a cloud GPU — it's a computer that fits in your hand and uses less power than a light bulb. The tradeoff is intentional: offline capability requires local compute.
What if it gives me wrong medical or safety information?
SurvivorOS is a general reference tool — not a medical or professional service. Always verify critical information through a qualified source. The offline library (Wikipedia, WikiHow, medical reference content) is there to help you cross-check. When in doubt, don't act on it.
Do I need a Raspberry Pi?
For the SD Card Image and SurvivorBox tiers, yes — a Raspberry Pi 5 is required (you source it yourself for the SD card tier; it comes included with SurvivorBox). For the Build tier, the installer also runs on any x86_64 Linux machine.
How do I update content on an offline device?
The device stays offline by design. To update: download new content on any internet-connected machine (Wikipedia ZIM files, new model weights), copy to a USB drive, and upload via the admin web interface when you're back in the field. No cloud, no subscription.
What warranty comes with the SD card image and SurvivorBox?
The SD card image is a digital product — we guarantee the download works and boots correctly on a Pi 5. If it doesn't, contact us and we'll make it right. The SurvivorBox hardware carries a 1-year limited warranty against manufacturing defects. Physical SD cards (if purchased) are non-refundable once opened.