Flow Test Calculator vs Station Boss V2
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.
Station Boss V2
This comprehensive platform streamlines operations and record-keeping for fire, EMS, and law enforcement agencies. It provides fast access to dispatch tools, incident records, personnel management, scheduling, and reporting for responders and administrators.
- Dispatch response tools
- Incident records management
- Personnel and apparatus tracking
- Scheduling and training logs
- Operational reporting
- Live incident details with GPS routing
- Role-based access control
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Station Boss is an all-in-one operations and records platform for fire, EMS, and law enforcement agencies. Built for career, combination, and volunteer departments, Station Boss gives responders and administrators fast access to dispatch response tools, incident records, personnel, apparatus, schedules, training, checklists, and operational reporting. Respond with live incident details and GPS routing, document reports while information is fresh, coordinate events and staffing, and complete pass/fail apparatus checks from one workspace. Role-based access keeps each member focused on the records and functions relevant to them. Station Boss supports agencies of every size with a unified web and mobile experience.
Screenshots
Verdict
The clearest difference is rating: Station Boss V2 at 5.0 against Flow Test Calculator's 4.1. Station Boss V2 also leads on in-app purchases (none vs 4) and update cadence (every 5 days vs every 90 months). Flow Test Calculator's advantage is ratings volume (63 vs 2). 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. Station Boss V2 asks for nothing beyond the download.
Station Boss V2 holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Flow Test Calculator has 63 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 69% of Flow Test Calculator's written reviews are positive against 80% of Station Boss V2's.
Flow Test Calculator ships an update every 90 months, Station Boss V2 every 5 days. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.
| Parameter | Flow Test Calculator | Station Boss V2 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (63 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 68.8% of reviews | 80.0% of reviews — better |
| Number of ratings | 63 — better | 2 |
| Update frequency | Every 90 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 2 MB | 193 MB |
| Age rating | 4+ | 17+ |
| Developer | Larry Owens | STATION BOSS, LLC |
Customer experience
Flow Test Calculator
Station Boss V2
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
Station Boss V2
No in-app purchases
Questions
Is Flow Test Calculator free?
Is Station Boss V2 free?
Which has better reviews, Flow Test Calculator or Station Boss V2?
Do Flow Test Calculator or Station Boss V2 have ads?
Which is updated more often, Flow Test Calculator or Station Boss V2?
Other comparisons
