Feature 01

Ask anything. Get sourced answers.

A survival-specific AI on the device. No API calls, no cloud. Plain language in, numbered steps out, with the manual it used.

No Signal — AI Assistant
AI Ready · Offline
How do I purify water if I only have a plastic bottle and sunlight?
Use solar disinfection (SODIS). Fill a clear PET plastic bottle with water, removing any large particles first. Place the bottle on a dark or reflective surface in direct sunlight for at least 6 hours — or 48 hours if overcast. WHO — Solar Water Disinfection
Verify water purification methods against source documents. AI guidance does not replace field testing.

Sourced, not guessed

Every answer is pulled from the manuals on the device and shows where. If the library does not cover it, the model is instructed to say so.

Connects the real need

Ask about boiling water with no lighter and it also searches fire-starting. Follow-ups like “what about in the cold?” keep the last few turns.

Honest about risk

Medical, plant ID, and first aid show an amber banner. This is not a doctor. Open the citation before you act.

Phone and desktop

Mobile runs a compact on-device model. Desktop can run the larger local model if you have the RAM. Same citation rule on both.

No Signal is not medical advice. Citations exist so you can verify. In an emergency, get trained help when you can.

Under the Hood

For people who want the internals

Desktop runtimellama.cpp · GGUF · Metal / CUDA
Desktop modelsPhi-3.5-mini / Mistral-7B
RetrievalOn-device vector search + citations
MobileCompact on-device model + same library
Explore More

See what else No Signal can do.

Document Library → Navigation Suite → Inventory Tracker →

When there's no signal,
there's still an answer.

The smartest thing in your pack.

Buy · $99

$99 lifetime · iOS · Android · desktop