Comparison

Fire Pump Calc vs First Due Unify

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Fire Pump Calc

This professional hydraulic calculator assists fire service professionals and students with complex calculations for pump operations. It accurately determines pump discharge pressure, friction loss, elevation changes, and appliance pressure loss, all designed for real-world fireground scenarios. The app works offline and requires no account for immediate use.

Highlights
  • Pump Discharge Pressure (PDP) calculation
  • Friction loss for any hose lay
  • Elevation gain and loss calculation
  • Appliance pressure loss
  • Nozzle pressure calculation
  • Offline functionality
  • No account required
Features
Read full description

Fire Pump Calc is the hydraulic reference tool built for the fireground — fast, accurate, and designed by fire service personnel for fire service personnel. STRUCTURAL OPERATIONS Calculate pump discharge pressure for any structural attack scenario. Select nozzle pressure, hose diameter, hose length, flow rate, elevation, and number of appliances. Instant PDP output using industry-standard friction loss formulas. Metric/imperial toggle built in. WILDLAND PUMP SPECS Full reference specs for five verified wildland pumps — Waterax MARK-3, Wick 80-4H, Honda WH20X, CET PFP-23hp, and CET PFP-11hp. Performance curves, engine specs, fuel type, weight, and max head pressure. All data verified against manufacturer documentation. ADVANCED WILDLAND CALCULATOR Purpose-built for wildland initial attack. Select your pump, hose diameter, hose length, elevation, nozzle type, wyes and fittings, water source, and tank fill percentage. Outputs required PDP, GPM at PDP, max hose lay, max elevation, and estimated runtime — with a live indicator showing whether your required PDP is within pump capacity. CUSTOM PUMP BUILDER Add your own pump specs and save them for future reference. Custom pumps appear in both Wildland screens and persist between sessions. BUILT FOR THE JOB No sign-in required. Works fully offline. No ads, no in-app purchases, no external network calls. A mandatory disclaimer is presented on first launch. Built and maintained by Captain Justin Medeiros, Kitimat Firefighters Association.

About

First Due Unify

Features
Read full description

Maximize your Unify 2026 experience with the official event app. Build your schedule, save favorite sessions, and stay up to date with event announcements and real-time updates.

Screenshots

Fire Pump Calc4 screens
First Due Unify3 screens

Verdict

The call

Fire Pump Calc and First Due Unify are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Fire Pump Calc versus First Due Unify: the parameters behind the verdict, then further details
ParameterFire Pump CalcFirst Due Unify
PriceFreeFree
Rating4.3 (4 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 5 days—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.5 — better
Further details — not scored
Size6 MB118 MB
Age rating4+4+
DeveloperJustin MedeirosLocality Media, Inc.

In-app purchases

None

Fire Pump Calc

No in-app purchases

None

First Due Unify

No in-app purchases

Questions

Is Fire Pump Calc free?
Fire Pump Calc is free to download, with no in-app purchases.
Is First Due Unify free?
First Due Unify is free to download, with no in-app purchases.
Do Fire Pump Calc or First Due Unify have ads?
Neither Fire Pump Calc nor First Due Unify shows ads.

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