Thousands of pages of survival knowledge. Local AI. Offline maps.
Everything you need — no connection required.
Now testing — macOS, Windows, Linux
Early access · Direct line to the developer · Free for beta testers
Every survival app has the same fatal flaw — they need the one thing you don't have in an emergency. No Signal is different. It runs entirely on your machine. Local AI. Local documents. Local maps. Truly, permanently offline.
Four core capabilities, all running locally on your machine. No cloud. No subscription. No signal required.
A survival-specific AI that runs entirely on your device. Ask in plain language — get step-by-step guidance backed by real documents with source citations.
Learn More →Over 5,000 pages from military field manuals, government survival guides, and expert references — spanning 16 categories. Searchable and instant.
Learn More →Offline topo maps, a real-time celestial chart with 1,000+ stars, field reference cards, and radio tools. Four tools that replace four apps.
Learn More →Track survival supplies, monitor expiration dates, and identify gaps in your preparedness. Know what you have and what you need at a glance.
Learn More →No telemetry. No analytics. No phone-home. Zero network calls when offline.
No cloud. No server. The AI brain runs directly on your hardware, GPU or CPU. It never phones home.
Every survival document is indexed and searchable in milliseconds. Ask a question, get the exact passage you need.
Download your region once. Topographic maps stored permanently on your drive. No connection needed, ever.
1,000+ stars pre-loaded with position data. The night sky works without a signal — point up and find your way.
Not "works offline sometimes." Not "cached for a while." This is a fundamentally different architecture.
The AI, the documents, the maps, the star chart — everything runs on-device with zero network. Download it, disconnect forever, it still works.
Not a general chatbot. Responses prioritize actionable, step-by-step guidance. Leads with what to do, not what to read.
Every answer traces back to a real document. No hallucinated advice when your life might depend on it.
Not just a map. Celestial charts, field reference cards, and radio tools. Four tools that replace four apps.
Dark, minimal, precise. Designed for focus under stress. Looks like a tool, not a toy.
No analytics. No tracking. No data collection. Nothing leaves your device. Your survival data is yours alone.
| No Signal | ChatGPT Offline | Prepper AI | SAS Survival Guide App | Downloaded PDFs | |
|---|---|---|---|---|---|
| Works fully offline | ✓ | — | — | ✓ | ✓ |
| Survival-specific AI | ✓ | — | ✓ | — | — |
| Cited sources | ✓ | — | — | — | — |
| Offline maps | ✓ | — | — | — | — |
| Star navigation | ✓ | — | — | — | — |
| No subscription | ✓ | — | — | ✓ | ✓ |
| Runs on your machine | ✓ | — | — | — | ✓ |
The smartest thing in your pack.
Join the BetaNow testing — free for beta testers
macOS · Windows · Linux · Early access · Direct developer feedback