Comparison

Echospectra vs Hydrant Flow Test Calculator

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

Head to head
About

Echospectra

This platform streamlines wildfire investigation documentation for field professionals. It replaces traditional paper forms and GPS units with a structured, offline-capable workflow. Capture evidence, link images to locations, and generate courtroom-ready reports efficiently.

Highlights
  • Structured indicator mapping
  • One-click defensible photo logs
  • Offline map reliability
  • Export-ready case packages
  • View-only and scoped-edit sharing
Features
Read full description

Echospectra Raising the Standard in Wildfire Investigation Echospectra is the field-ready documentation platform built for wildfire origin and cause (O&C) investigators. Designed by fire professionals and data scientists, it replaces paper forms, GPS units, and disorganized photo logs with one structured, defensible workflow that works entirely offline. Our mobile and desktop tools enforce indicator discipline, auto-link every image to its location and compass bearing, and export courtroom-ready reports in a single click—reducing documentation time by up to 80% while improving consistency, accuracy, and legal defensibility. Built for the Field Capture indicators, areas, and transition zones directly on the map. Each record automatically stores GPS coordinates, azimuth, timestamps, and author metadata. Cached maps and offline syncing keep you working anywhere—even miles from coverage. Scientifically Defensible Echospectra aligns with NWCG PMS 412 documentation standards, preserving full chain-of-custody and metadata integrity. Every change is tracked with an auditable history, supporting both internal QA and expert testimony. Efficiency Meets Clarity Investigators collect more comprehensive data in two days with Echospectra than a week using traditional methods. Structured exports—photo logs, KML, and original images—turn fieldwork into clean, shareable case files that withstand scientific and legal scrutiny. Key Capabilities • Structured indicator mapping aligned with NWCG standards • One-click, defensible photo logs with GPS, azimuth, and timestamps • Layered, shareable maps with offline reliability • Export-ready case packages for QA and litigation • View-only and scoped-edit sharing for clients or teams • Optional property, weather, and lightning layers (Pro tier) Trusted by Experts Validated through multi-agency field use and recognized at the 2025 Wildfire Ignition Causes Conference, Echospectra is built for investigators who demand clarity, defensibility, and speed in the field. Field-fast capture. Teamwide clarity. Data you can defend. Download Echospectra today.

About

Hydrant Flow Test Calculator

This tool simplifies hydrant flow testing by calculating total GPM from pitot pressures. It allows for outlet settings, flow extrapolation with a Supply vs Demand curve, and plotting demand points for PASS/FAIL results. Save test data with location and project details for future reference.

Highlights
  • Calculate total GPM from pitot pressures
  • Configure outlet diameter and hydrant coefficients
  • Extrapolate flow with Supply vs Demand curve
  • Plot demand points for PASS/FAIL analysis
  • Save test results with date, time, and project info
  • Log hydrant locations via GPS
  • Review saved test history
Features
Read full description

Hydrant Flow Test Calculator is a field-friendly calculation and reporting tool for fire protection professionals, engineers, inspectors, contractors, and AHJs who need to evaluate and document hydrant flow test results. The app helps calculate hydrant flow from field readings, compare available water supply against system demand, estimate downstream friction loss, and export professional PDF reports. Key features: • Calculate hydrant flow using static pressure, residual pressure, pitot pressure, outlet diameter, and discharge coefficients • Calculate total test flow and flow at a target residual pressure • Compare available supply against system or pump demand • Review demand pass/fail results with available pressure and safety cushion • View Supply vs Demand graph with demand point legend • Save completed test records to History • Add project information including associate, project number, project location, test hydrant tag, and flow hydrant tag • Optionally capture test hydrant and flow hydrant coordinates • Attach an image to a saved test record • Export PDF reports with project details, test summary, demand results, graph, location details, friction loss results, and attachment • Estimate friction loss using pipe product, nominal pipe size, inside diameter, pipe length, C-factor, elevation, minor loss, and device/backflow loss • Supports US and SI flow display The Friction Loss tool includes pipe product and nominal pipe size selection with automatic inside diameter lookup. Elevation guidance helps users enter positive values for uphill and negative values for downhill conditions. Hydrant Flow Test Calculator is designed to make field calculations faster, improve documentation consistency, and help organize hydrant flow test information in one place. This app is intended as a calculation and documentation aid. Users are responsible for verifying all inputs, assumptions, calculations, and results according to applicable codes, standards, project requirements, and professional judgment.

Screenshots

Echospectra4 screens
Hydrant Flow Test Calculator4 screens

Verdict

The call

The clearest difference is update cadence: Echospectra at weekly against Hydrant Flow Test Calculator's every 5 weeks. Hydrant Flow Test Calculator's advantage is iOS requirement (15.1 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Echospectra against 5.0 for Hydrant Flow Test Calculator. Both are backed by a comparable volume of ratings — 3 and 3 respectively.

UpkeepUpdate frequency

Echospectra ships an update weekly, Hydrant Flow Test Calculator every 5 weeks. The most recent releases landed on September 12, 2026 and October 4, 2026 respectively.

Scorecard2 real differences · 8 level
Echospectra versus Hydrant Flow Test Calculator: the parameters behind the verdict, then further details
ParameterEchospectraHydrant Flow Test Calculator
PriceFreeFree
Rating5.0 (3 ratings)5.0 (3 ratings)
Positive reviews—100.0% of reviews
Number of ratings33
Update frequencyWeekly — betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size98 MB38 MB
Age rating4+4+
DeveloperAx0n Intelligence CompanySaleel Anthrathodiyil

Customer experience

Echospectra

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Hydrant Flow Test Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Echospectra

No in-app purchases

None

Hydrant Flow Test Calculator

No in-app purchases

Questions

Is Echospectra free?
Echospectra is free to download, with no in-app purchases.
Is Hydrant Flow Test Calculator free?
Hydrant Flow Test Calculator is free to download, with no in-app purchases.
Which has better reviews, Echospectra or Hydrant Flow Test Calculator?
Echospectra and Hydrant Flow Test Calculator are both rated 5.0 out of 5 on the App Store, from 3 and 3 ratings respectively.
Do Echospectra or Hydrant Flow Test Calculator have ads?
Neither Echospectra nor Hydrant Flow Test Calculator shows ads.
Which is updated more often, Echospectra or Hydrant Flow Test Calculator?
Echospectra ships an update weekly, and Hydrant Flow Test Calculator every 5 weeks. Most recently, Echospectra was updated on September 12, 2026 and Hydrant Flow Test Calculator on October 4, 2026.

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