Comparison

Flow Test Calculator vs FireWorks App Pro

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

Head to head
About

Flow Test Calculator

Calculate hydrant flow rates and determine maximum water system flow. This tool uses a standard variation of the Hazen-Williams formula for calculations. Imperial units are currently supported, with metric coming soon.

Highlights
  • Hydrant flow rate calculation
  • Maximum water system flow determination
  • Hazen-Williams formula implementation
  • Imperial unit support
  • Future metric unit support
Features
Read full description

This app is a simple flow test calculator to assist the user with determining flow rates of hydrants as well as determining if the maximum flow of the water system. A standard variation of the Hazen-Williams formula is used to determine the Max Flow Available. All units are in Imperial. Metric to come soon.

About

FireWorks App Pro

Features
Read full description

The All-in-One Mobile Platform for Modern Fire Departments EPR FireWorks is the complete mobile solution built for U.S. fire departments to streamline operations, inspections, compliance, and emergency response readiness. Whether you're in the station, on the road, or at an incident, EPR FireWorks keeps your team connected, accountable, and efficient. Designed in close collaboration with fire service professionals, EPR FireWorks brings together every tool your department needs to operate at full strength—with real-time data, mobile-first workflows, and compliance built in from the ground up. Key Features: Inspections & Fire Prevention Conduct and document fire inspections, issue violations, and generate digital reports on the go. Fully customizable checklists and automatic code references make it easy to stay NFPA and ICC compliant. Digital Records Management Access and manage personnel files, certifications, inventory, and inspection history—anytime, anywhere. Custom Forms & Reports Create your own workflows for burn permits, hydrant testing, or pre-incident planning with flexible form builders and templates. Secure, Cloud-Based, and Offline-Capable Work in remote areas with no signal—your data syncs automatically once back online. EPR ensures secure access and encrypted storage that meets public sector IT standards. Trusted by Fire Departments Nationwide Whether you’re a small volunteer agency or a large municipal fire service, EPR FireWorks empowers your department with the technology it needs to operate smarter, safer, and more efficiently.

Screenshots

Flow Test Calculator2 screens
FireWorks App Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: FireWorks App Pro at none against Flow Test Calculator's 4. FireWorks App Pro also leads on update cadence (every 5 weeks vs every 90 months). On price, ads, device support and iOS requirement 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. Flow Test Calculator sells 4 one-off in-app purchases. FireWorks App Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Flow Test Calculator ships an update every 90 months, FireWorks App Pro every 5 weeks. The most recent releases landed on September 18, 2026 and September 30, 2026 respectively.

Scorecard2 real differences · 8 level
Flow Test Calculator versus FireWorks App Pro: the parameters behind the verdict, then further details
ParameterFlow Test CalculatorFireWorks App Pro
PriceFreeFree
Rating4.1 (63 ratings) — better—
Positive reviews68.8% of reviews—
Number of ratings63 — better—
Update frequencyEvery 90 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.013.0 — better
Further details — not scored
Size2 MB74 MB
Age rating4+17+
DeveloperLarry OwensEprsys

In-app purchases

4 purchases

Flow Test Calculator

One-time4
  • Disable Purchase Requests$0.99
  • Disable Purchase Requests 1.99$1.99
  • Disable Purchase Request 4.99$4.99
Show 1 more
  • Disable Purchase Requests 9.99$9.99
None

FireWorks App Pro

No in-app purchases

Questions

Is Flow Test Calculator free?
Flow Test Calculator is free to download, with in-app purchases available.
Is FireWorks App Pro free?
FireWorks App Pro is free to download, with no in-app purchases.
Do Flow Test Calculator or FireWorks App Pro have ads?
Neither Flow Test Calculator nor FireWorks App Pro shows ads.
Which is updated more often, Flow Test Calculator or FireWorks App Pro?
Flow Test Calculator ships an update every 90 months, and FireWorks App Pro every 5 weeks. Most recently, Flow Test Calculator was updated on September 18, 2026 and FireWorks App Pro on September 30, 2026.

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