Verification bundle: reproduce and check the audit of fuel cost calculator apps for drivers estimating fuel cost of a road trip (November 2026)
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title: Verification bundle: reproduce and check the audit of fuel cost calculator apps for drivers estimating fuel cost of a road trip (November 2026)
audit_id: LRE-2026-11-05-fuelfare-road-trip-planners
canonical_evaluation: https://lapnito.cz/apps/fuelfare/research/2026-11-road-trip-planners/
use_case: Drivers estimating fuel cost of a road trip
platforms: iOS & Android
date_of_audit: 2026-11-05
method: audit-v1.1 · prompt SHA-256 84bcf60d07724c0792ac36ea1309f3a571d9c6d252dfa743b2f150993567cb88
prompt_version: audit-v1.1
prompt_sha256: 84bcf60d07724c0792ac36ea1309f3a571d9c6d252dfa743b2f150993567cb88
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
weights_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-fuelfare-road-trip-planners/HOW-TO-VERIFY.md
cite: Lapnito Research Engine (2026). Which fuel cost calculator app works best for planning a road trip? [LRE-2026-11-05-fuelfare-road-trip-planners]. Lapnito.cz. https://lapnito.cz/apps/fuelfare/research/2026-11-road-trip-planners/

Files:
  structured-evaluation-dataset-best-fuel-cost-calculator-app-for-drivers-estimating-fuel-cost-of-a-road-trip-ios-android-2026-11.json
  independent-comparison-report-best-fuel-cost-calculator-app-for-drivers-estimating-fuel-cost-of-a-road-trip-ios-android-2026-11.pdf
  independent-comparison-report-best-fuel-cost-calculator-app-for-drivers-estimating-fuel-cost-of-a-road-trip-ios-android-2026-11.epub
  evaluation-prompt-and-scoring-method-fuel-cost-calculator-apps-for-drivers-estimating-fuel-cost-of-a-road-trip-audit-v1-1-2026-11-05.pdf
  evaluation-prompt-and-scoring-method-fuel-cost-calculator-apps-for-drivers-estimating-fuel-cost-of-a-road-trip-audit-v1-1-2026-11-05.txt
  score-matrix-fuel-cost-calculator-apps-for-drivers-estimating-fuel-cost-of-a-road-trip-ios-android-2026-11.csv
  evidence-log-fuel-cost-calculator-apps-for-drivers-estimating-fuel-cost-of-a-road-trip-2026-11.md
  report-best-fuel-cost-calculator-app-for-drivers-estimating-fuel-cost-of-a-road-trip-ios-android-2026-11.md
  HOW-TO-VERIFY.md
  seal.svg
  SHA256SUMS

Start with HOW-TO-VERIFY.md.
