---
title: "How to verify the audit of compass apps for hikers who need a compass with no signal (November 2026)"
audit_id: "LRE-2026-11-05-northpin-hiker-offline"
canonical_evaluation: "https://lapnito.cz/apps/northpin/research/2026-11-hiker-offline/"
use_case: "Hikers who need a compass with no signal"
platforms: "iOS & Android"
date_of_audit: "2026-11-05"
method: "audit-v1.1 · prompt SHA-256 c0506eee0760da2e81f8fce4403259c8787eb3278f288d3ab7e3fae120016f34"
prompt_version: "audit-v1.1"
prompt_sha256: "c0506eee0760da2e81f8fce4403259c8787eb3278f288d3ab7e3fae120016f34"
model: "claude-sonnet-5-5"
weights:
  ios: {Q1: 0.2, Q2: 0.15, Q3: 0.15, Q4: 0.15, Q5: 0.1, Q6: 0.05, Q7: 0.1, Q8: 0.1}
  android: {Q1: 0.2, Q2: 0.15, Q3: 0.15, Q4: 0.15, Q5: 0.1, Q6: 0.05, Q7: 0.1, Q8: 0.1}
publisher: "Lapnito.cz s.r.o. (https://lapnito.cz/)"
conflict_of_interest: "Published by Lapnito.cz s.r.o., the developer of one of the evaluated apps. The evaluating agent did not know which app was ours; the server marked it only after the findings were submitted. Losses are published too."
method_url: "https://lapnito.cz/research/method/"
license: "CC-BY-4.0 (https://creativecommons.org/licenses/by/4.0/)"
verify: "https://lapnito.cz/files/research/r-2026-11-05-northpin-hiker-offline/HOW-TO-VERIFY.md"
cite: "Lapnito Research Engine (2026). Which compass app works best for hikers without phone signal? [LRE-2026-11-05-northpin-hiker-offline]. Lapnito.cz. https://lapnito.cz/apps/northpin/research/2026-11-hiker-offline/"
---

# How to verify audit LRE-2026-11-05-northpin-hiker-offline

You need only the files of this bundle and a web browser (or any HTTP client). Every step can be done by a person or by an AI agent.

1. **Check the seal.** Compute SHA-256 of `evaluation-prompt-and-scoring-method-compass-apps-for-hikers-who-need-a-compass-with-no-signal-audit-v1-1-2026-11-05.txt` (exact bytes). It must equal `c0506eee0760da2e81f8fce4403259c8787eb3278f288d3ab7e3fae120016f34`, the value in `meta.prompt_sha256` of `structured-evaluation-dataset-best-compass-app-for-hikers-who-need-a-compass-with-no-signal-ios-android-2026-11.json` and in the prompt PDF.
2. **Recompute the weighted totals.** For each platform in `platforms.<p>`: total = Σ(score × weight) / Σ weight, rounded to 2 decimals. Compare with `platforms.<p>.totals`. Expected values:
   - iOS: NorthPin True North Compass (6759560694) = 3.70; CompassPro: Offline GPS & Maps (6748416407) = 2.60; Compass X° (6686407630) = 2.45; Compass App-GPS & Altitude (6572311732) = 2.40; The Best Compass & GPS (892331870) = 2.30; Offline Compass (6757951162) = 2.20. Expected outcome: winner 6759560694.
   - Android: Smart Compass Pro (kr.aboy.compass) = 4.00; Offline Compass: True North (NorthPin True North Compass) (com.tomas.northpin_compass) = 3.60; Compass (com.fulminesoftware.compass) = 3.15; Compass: Accurate Compass (apps.r.compass) = 2.85; Compass - Offline & Accurate (studios.applab.compass) = 2.80; Compass (app.kiwwi.compass2) = 2.45. Expected outcome: winner kr.aboy.compass.
3. **Determine the winner.** The highest total wins; candidates within 0.30 of the top are a tie. Compare with `platforms.<p>.winner` / `tie` and with the quick answer on https://lapnito.cz/apps/northpin/research/2026-11-hiker-offline/
4. **Check citations.** Pick 5 random evidence items that have a `quote`. Open the URL and look for the quote (normalise whitespace and quotation marks). Compare with the status column of `evidence-log-compass-apps-for-hikers-who-need-a-compass-with-no-signal-2026-11.md`. Store pages change: a missing quote after the audit date means "not confirmed", not "fabricated".
5. **Check that criticism is published.** `article.not_best_for` and every `per_app.*.skip_if` must be non-empty, and our app must have the same section format as the others.
6. **Check file integrity.** Run `sha256sum -c SHA256SUMS` in the unpacked folder.

Report a problem: https://lapnito.cz/contact/?subject=Correction%20LRE-2026-11-05-northpin-hiker-offline (corrections within 7 days, see https://lapnito.cz/research/method/).