FDR Calculator

FDR Calculator

By Alan Richert

FDR Calculator is a professional fire risk assessment tool for emergency services and land managers on iOS and Android.

The App DNA

What makes this app unique?

The app removes the manual effort of calculating fire danger indices in remote field locations where connectivity is unreliable.

For Fire management professionals, land managers, and emergency services personnel requiring field-based fire risk assessment tools.

What does it look like?

Key features

Weather Pro Subscriptionedge

Integrates real-time weather data for automated Fire Danger Rating calculations.

Manual Calculatorstandard

Enables offline risk assessment via manual input of temperature, humidity, and wind speed.

Action Guidanceedge

Maps color-coded danger levels to specific suppression and disaster management protocols.

How much does it cost?

freemiumFree version with manual calculatorWeather Pro subscription for automated real-time data

The freemium model gates real-time automation behind a subscription, while retaining core manual calculation functionality for free users.

Velocity

Maintenance developmentUX improvementsnew contentShow more...

The app currently operates at a maintenance cadence, with only one release shipped in the last 121 days. Development is focused on refining existing functionality and expanding weather data sources rather than introducing new core features. The latest release provided incremental improvements to calculation accuracy and added a summary view, but the long interval between updates indicates a low-frequency development cycle. No further updates have been recorded in the last four months.

See all version history

Who built it?

Alan Richert

2 apps tracked · Weather

FDR CalculatorFDR Calculator
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User Sentiment

What do users think recently?

Fresh user feedback skews excited. Users appreciate refined fire danger rating calculations provide more dependable data for professional users during dry spells.

How are ratings & reviews evolving?

App Store
0.00 · 0
Google Play
0.00 · 0

What users say, by theme

What Users Love
  • Refined fire danger rating calculations provide more dependable data for professional users during dry spells
What Frustrates Users
  • Inaccurate location search functionality causes the app to return incorrect geographic results for specific regions

4 of 4 recent reviews analyzed · limited sample

Read the full review analysis

Competition

Competitive landscape for FDR Calculator

How's the Weather market?

FDR Calculator serves a professional niche in the Weather category, with a 3.2.0 version release cadence that prioritizes stability over rapid feature expansion. The app maintains a 4+ content rating, reflecting its focus on professional safety and risk assessment.

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The rivals identified

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The Analyst's Read

Key takeaways for FDR Calculator

Where is it heading?

The fire risk assessment market is consolidating around tools that offer both high-precision data and offline reliability. FDR Calculator is well-positioned for this niche, but its slow release cadence leaves it vulnerable to competitors that can resolve geographic mapping issues faster.

  • Refined fire danger rating calculations provide more dependable data for professional users during dry spells, increasing trust in the tool.
  • Persistent location search errors continue to frustrate users, indicating that recent search improvements have not fully resolved underlying geographic mapping issues.

The SWOT

Core Strengths
  • Offline-first manual calculator ensures utility in remote field environments where connectivity is unavailable.
  • Action guidance protocols provide professional-grade disaster management procedures mapped to risk levels.
Critical Frictions 2 weaknesses inside
Growth Levers
  • Integrating hyper-local topography data could provide a differentiator against generic weather-based risk calculators.
Market Threats 1 threat identified

Next best moves

1 Invest · 1 Maintain

Rebuild location search service because users report incorrect geographic results for specific towns -> improve professional reliability.

+ 1 more prioritized move

The counter-intuitive read

The app's offline-first design is a retention lever…

Read the full take

Bottom line

FDR Calculator provides essential offline utility, but the persistent geographic search errors undermine its professional-grade positioning. Addressing the search reliability is the necessary move to secure the subscription funnel and retain the professional user base.

Unlock 2 critical frictions, 1 market threat, 1 more prioritized move and the analyst’s take.

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FAQ

Is FDR Calculator suitable for professional fire management use?
Yes, it is designed for fire management professionals and emergency services, providing professional-grade algorithms and action guidance for fire risk assessment.
Does FDR Calculator work without an internet connection?
Yes, the manual calculator is designed to work completely offline, allowing for risk assessment in remote field environments.
What is the difference between the free version and Weather Pro?
The free version includes the manual calculator for offline use, while the Weather Pro subscription unlocks automated real-time weather data and location detection.
Are there alternatives to FDR Calculator for fire risk assessment?
While there are general-purpose weather apps, FDR Calculator is specialized for fire management professionals, offering specific suppression strategies and disaster management procedures.

Sources

  1. [1] App Store

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by FDR Calculator, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “FDR Calculator Intelligence Report.” Updated Oct 7, 2026. https://marlvel.ai/apps/fdr-calculator

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