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.
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.
- Hydrant flow rate calculation
- Maximum water system flow determination
- Hazen-Williams formula implementation
- Imperial unit support
- Future metric unit support
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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.
FireWorks App Pro
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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
Verdict
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
Both are free to download. Flow Test Calculator sells 4 one-off in-app purchases. FireWorks App Pro asks for nothing beyond the download.
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.
| Parameter | Flow Test Calculator | FireWorks App Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (63 ratings) — better | — |
| Positive reviews | 68.8% of reviews | — |
| Number of ratings | 63 — better | — |
| Update frequency | Every 90 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 74 MB |
| Age rating | 4+ | 17+ |
| Developer | Larry Owens | Eprsys |
In-app purchases
Flow Test Calculator
- Disable Purchase Requests$0.99
- Disable Purchase Requests 1.99$1.99
- Disable Purchase Request 4.99$4.99
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- Disable Purchase Requests 9.99$9.99
FireWorks App Pro
No in-app purchases
Questions
Is Flow Test Calculator free?
Is FireWorks App Pro free?
Do Flow Test Calculator or FireWorks App Pro have ads?
Which is updated more often, Flow Test Calculator or FireWorks App Pro?
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