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Survival LLM

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Claimed by the developer

Calva cryptographically proved they hold the key that signs Survival LLM. The claim is a signed proof on Nostr, tied to the certificate below.

Developer
Calva
Developer key
npub16dhgpql60vmd4mnydjut87vla23a38j689jssaqlqqlzrtqtd0kqex0nkq
Signing certificate
d2e580217eb3c15345740d6259999dfb9452a24ac440037af4b2358c72a27e49
APK checked by
relay.zapstore.devIt read the APK and found it signed with this certificate before listing the release.
Claim published
Nov 2, 2026
Valid until
Nov 1, 2028
Proof event
10f536c6888f09023527b83eb3b3b40888e412e976df34360c83c45fdc037ef8in relay.zapstore.dev
How trust works

Offline AI assistant and survival library that works with no internet. It searches a local database of medical, emergency, and how-to articles to answer questions like treating burns or purifying water, showing the exact source passage for every response.

Survival LLM is a free AI assistant and survival library that runs entirely on your phone and works with no internet. Ask it how to keep food safe in a blackout, treat a burn or purify water: it searches an offline library of medical, emergency, how-to and encyclopedia articles, answers from what it finds, and shows you the exact passage each answer came from.

  • Offline and private: the AI model and the library live on your phone. Your questions never leave it, and once set up it works with the internet off.
  • Shows its sources: every answer lists the articles it read; tap one to read it yourself, with the cited passage highlighted.
  • Built for emergencies: about 500,000 articles in the Essentials download — WikiMed, MedlinePlus, a UK medicines guide, WikEM, Ready.gov, CDC, U.S. military and FEMA survival and first-aid manuals, the USDA canning guide, wikiHow and more.

Set it up while you have internet (the AI model is about 2 GB and the Essentials library about 1.3 GB); after that it needs none.

AI models make mistakes. Every answer shows its sources so you can check.

Summary generated by Zapstore from source.

Original description, as the developer published it.

Zap Survival LLM

Zapping anonymously. Sign in to zap with your identity.

Sats go to npub16dhgp…ex0nkq, the developer who signed the app’s certificate proof.

Amount in sats

Stacked in

Latest release

Nov 7, 2026

Claimed app Google servicesSource available · MIT

Camera, microphone, location, and overlay access have no shown use.

Permissions

Coarse locationFine locationCameraFilesMicrophoneOverlay What they allow
  • Coarse location ACCESS_COARSE_LOCATION See your approximate location Has no shown use.
  • Fine location ACCESS_FINE_LOCATION See your precise location Has no shown use.
  • Camera CAMERA Take photos and record video Has no shown use.
  • Files READ_EXTERNAL_STORAGE Read files on this phone
  • Microphone RECORD_AUDIO Record audio Has no shown use.
  • Overlay SYSTEM_ALERT_WINDOW Draw over other apps Has no shown use.

Includes Google Play services.

Release notes

Changelog

0.1.3

Fix the AI dumping raw tool-call text ({"name": "read_article", ...}) as its answer instead of looking articles up: text-written calls are now recovered and run, markup never reaches the screen, and an answer that is only markup falls back to answering with library excerpts. Also caps on-screen article opens at one per answer — asking a question no longer hijacks the screen for every article the AI reads.

0.1.2

Fix a crash when the AI answers with library sources: after it used its search and read tools, the follow-up request could fail with "Failed to parse messages: ... type must be string, but is null". Tool calls are now rebuilt with string-only fields before going back to the model, and the no-tools fallback retries from a clean transcript instead of the failed messages.

0.1.1

Fix download progress during setup: the library and AI-model bars no longer swap places on every update, and multi-part library downloads show one bar labelled with the current part instead of stacking up identical bars.

0.1.0

First Android release. On-device AI chat (llama.cpp) with the offline survival library: full-text search, source citations with a tap-to-read article reader, and resumable, checksum-verified downloads of the AI model and the Essentials library pack.

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Get Survival LLM the private way

Updates checked on your device, and every release verified before it installs.

Get Zapstore for Android

  1. Tap Download APK below.Scan the code with your Android phone’s camera.
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Download APK

v2.0.4 · 71.2 MB · Android 10+

Verify the download

On a computer, run shasum -a 256 <the file you downloaded>. It should print: b13e01319fecf0b3ba1fd60132758bd0fa08a235836c52d44fddb412cf1b7137

If you have zsp, Zapstore’s publishing tool, zsp utils extract-apk <the file you downloaded> works too. Its hash should be the same SHA-256: b13e01319fecf0b3ba1fd60132758bd0fa08a235836c52d44fddb412cf1b7137

On the phone, AppVerifier should show this signing certificate: 99e33b0c2d07e75fcd9df7e40e886646ff667e3aa6648e1a1160b036cf2b9320

Source code All releases and notes

Get zsp

  1. Download the file for your computer.
  2. Make it executable and put it on your PATH.
  3. In your project folder, run zsp.

Have Go? This does the same:

go install github.com/zapstore/zsp/v2/cmd/zsp@latest
macOS, Apple silicon Linux, x86-64 Linux, arm64

v2.0.1 · macOS and Linux

Verify the download

On your computer, run shasum -a 256 <the file you downloaded>. It should print the SHA-256 for the one you chose.

macOS, Apple silicon · 18.6 MB 99018fb9744e5ace2b44557550dc333496239912c0e9b1137266d4922c803346

Linux, x86-64 · 23.8 MB 1ef5373f8ecd9ba63d2c3fab98abb0d31b2244a2aac31b3749fb205c7d5f5b38

Linux, arm64 · 22.1 MB e421005ee47cba58293dce4277bb784e4cfe706dbbcb8617d671629d0238be18

Source code All releases and notes