# ScanSeries vs Flow Test Calculator

The clearest difference is in-app purchases: ScanSeries at none against Flow Test Calculator's 4. ScanSeries also leads on update cadence (every 3 weeks vs every 90 months). Flow Test Calculator's advantage is review sentiment (69% vs 43%) and rating (4.1 vs 3.8). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Flow Test Calculator sells 4 one-off in-app purchases. ScanSeries asks for nothing beyond the download.

Flow Test Calculator holds the better App Store score, 4.1 against 3.8. Both are backed by a comparable volume of ratings — 48 and 63 respectively. Written reviews point the same way: 43% of ScanSeries's written reviews are positive against 69% of Flow Test Calculator's.

ScanSeries ships an update every 3 weeks, Flow Test Calculator every 90 months. The most recent releases landed on October 7, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | ScanSeries | Flow Test Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (48 ratings)](https://appshunter.io/ios/app/scanseries/id672855505/reviews) | **[4.1 (63 ratings)](https://appshunter.io/ios/app/flow-test-calculator/id853530759/reviews)** |
| Number of ratings | 48 | **63** |
| Positive reviews | 42.9% of reviews | **68.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 90 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 33 MB | 2 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BuildingReports.com, Inc](https://appshunter.io/developer/371699129) | [Larry Owens](https://appshunter.io/developer/496138296) |

## What reviewers say

### ScanSeries

[App page](https://appshunter.io/ios/app/scanseries/id672855505)

Streamline inspections of fire and life safety devices with this comprehensive mobile tool. Quickly gather data, generate verifiable reports, and ensure compliance with code requirements. This app is designed for users of the BuildingReports Web-based inspection reporting system.

**Highlights:** Fire and life safety device inspections, Quick data gathering, Verifiable inspection reports, Code compliance checks, FireScan, SafetyScan, SprinklerScan, SuppressionScan, SecurityScan, HVACScan modules

**In-app purchases:** none


### Flow Test Calculator

[App page](https://appshunter.io/ios/app/flow-test-calculator/id853530759)

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:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Disable Purchase Requests | $0.99 | one-time |
| Disable Purchase Requests 1.99 | $1.99 | one-time |
| Disable Purchase Request 4.99 | $4.99 | one-time |
| Disable Purchase Requests 9.99 | $9.99 | one-time |


## Frequently asked questions

### Is ScanSeries free?

ScanSeries is free to download, with no in-app purchases.

### Is Flow Test Calculator free?

Flow Test Calculator is free to download, with in-app purchases available.

### Which has better reviews, ScanSeries or Flow Test Calculator?

Flow Test Calculator is rated higher. ScanSeries averages 3.8 out of 5 from 48 ratings, while Flow Test Calculator averages 4.1 from 63 ratings.

### Do ScanSeries or Flow Test Calculator have ads?

Neither ScanSeries nor Flow Test Calculator shows ads.

### Which is updated more often, ScanSeries or Flow Test Calculator?

ScanSeries ships an update every 3 weeks, and Flow Test Calculator every 90 months. Most recently, ScanSeries was updated on October 7, 2026 and Flow Test Calculator on September 18, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*