# Fire Pump Operator vs FairSpin

The clearest difference is price: Fire Pump Operator at Free against FairSpin's $1.99. Fire Pump Operator also leads on iOS requirement (13.0 vs 17). FairSpin's advantage is in-app purchases (none vs 2). On ads and device support there is nothing between them.

Fire Pump Operator is free to download; FairSpin costs $1.99 up front. Fire Pump Operator sells 2 in-app purchases, starting at $1.99 per month. FairSpin asks for nothing beyond the download.

## The numbers

| Metric | Fire Pump Operator | FairSpin |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Monetization | Paid | — |
| Size | 48 MB | 3 MB |
| Requires iOS | **13.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Digital Training Systems Incorporated](https://appshunter.io/developer/320642446) | [贺 周](https://appshunter.io/developer/1815397078) |

## What reviewers say

### Fire Pump Operator

[App page](https://appshunter.io/ios/app/fire-pump-operator/id1044180312)

This app assists fire pump operators in calculating engine pressure using a standard formula. It allows for the addition of multiple friction losses, appliances, and elevations, and offers the ability to save and modify entries. Users can also adjust default coefficients and access other relevant calculators.

**Highlights:** Engine Pressure calculation, Add friction losses, appliances, elevations, Save and modify entries, Adjust IFSTA coefficients, Head Pressure calculator, NFA Formula calculator

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fire Pump Operator Pro | $1.99 | per month |
| Fire Pump Operator Pro | $19.99 | per year |


### FairSpin

[App page](https://appshunter.io/ios/app/fairspin/id6765886973)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Fire Pump Operator free?

Fire Pump Operator is free to download, with in-app purchases available.

### Is FairSpin free?

FairSpin costs $1.99, with no in-app purchases.

### Do Fire Pump Operator or FairSpin have ads?

Neither Fire Pump Operator nor FairSpin shows ads.

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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.*