A firefighting tanker dropping retardant over a wildland fire

High-Stakes Fire Calculations

Numbers You Can
Trust on the Line

Built by Wildland Apparatus Engineer, SP. — for aerial coordinators and engine bosses who have no patience for fluff.

FireBridge Calc App

Aerial Hydraulics · Free Mobile Beta

Drop planning, BTU rates, water requirements, and aircraft coverage — all on your phone.

Download FireBridge for Android (Beta)

Free APK · About 66 MB · Android 7.0+ (ARM devices) · No Expo Go needed

Installation instructions & beta notes

Download on your Android phone, open the APK, and allow installation from that download source when prompted. Keep device security protections enabled.

This is a development-signed testing release, not a Google Play release. Physical-device installation has not yet been verified.

If an existing installation conflicts, protect your saved scenarios before uninstalling: uninstalling removes on-device app data.

Scan to join the iOS beta on TestFlight

Open on your iPhone or iPad.

Join iOS Beta on TestFlight

Wildland Engineers Calc Beta

Engineer Calculator · Mobile Beta

The engineer calculator beta is a separate app from FireBridge, with its own iOS invitation and Android installer.

Download Wildland Engineers for Android (Beta)

Standalone APK · A separate app and installer from FireBridge

Installation instructions

Open the downloaded APK on your Android device and allow installation from that download source when prompted. Keep device security protections enabled. Protect saved data before uninstalling any existing app.

Scan to join the engineer iOS beta on TestFlight

Open on your iPhone or iPad.

Join Engineer iOS Beta on TestFlight

Scroll for details

FireBridge Calc // Mobile Beta

Bridge the Gap Between Estimates & Operations

The definitive aerial firefighting hydraulics calculator. Built for air attack coordinators and SEAT/LAT/VLAT operations. Plan drops, estimate BTU generation, and dial in the aircraft you need for full-line coverage.

Full-line coverage aircraft requirements
BTU generation rate & fire area
Water requirement (gal/s and L/s)
Run time per load & drop coverage %
Quarter-line planning
Full Imperial ↔ SI unit toggle

Get FireBridge Calc

Download the Android beta below, or join the iOS beta using TestFlight.

Scan the QR code with your iPhone or iPad to open the TestFlight invitation.

Download FireBridge for Android (Beta)

Free APK · About 66 MB · Android 7.0+ (ARM devices) · No Expo Go needed

Installation instructions & beta notes

Download on your Android phone, open the APK, and allow installation from that download source when prompted. Keep device security protections enabled.

This is a development-signed testing release, not a Google Play release. Physical-device installation has not yet been verified.

If an existing installation conflicts, protect your saved scenarios before uninstalling: uninstalling removes on-device app data.

Join iOS Beta on TestFlight

FireBridge dashboard showing aircraft required and mission outputs — Dashboard

FireBridge inputs for fire and aircraft parameters — Fire & aircraft inputs

FireBridge fire analysis showing dimensions, heat and water requirements — Fire analysis

FireBridge aircraft performance showing capacity, drop rate and coverage level checks — Aircraft performance

Scan to join Wildland Engineers Calc Beta on TestFlight.

Wildland Engineers Calc Beta // Mobile App

Ground-Level Precision

Get the engineer calculator on your phone. This is a separate mobile beta from FireBridge, with independent TestFlight access and its own downloadable Android APK.

01.iPhone and iPad beta access through Apple TestFlight

02.Standalone Android installer

03.Choose this app's links below—not the FireBridge links above