# MRF Tracking Viewer vs Fire Pump Calc

The clearest difference is update cadence: MRF Tracking Viewer at every 6 weeks against Fire Pump Calc's every 8 months. MRF Tracking Viewer also leads on iOS requirement (11.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MRF Tracking Viewer ships an update every 6 weeks, Fire Pump Calc every 8 months. The most recent releases landed on September 13, 2026 and August 19, 2026 respectively.

## The numbers

| Metric | MRF Tracking Viewer | Fire Pump Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (4 ratings)](https://appshunter.io/ios/app/fire-pump-calc/id6739542307/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 8 months |
| Monetization | — | Free |
| Size | 1 MB | 6 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MRF Geosystems Corporation](https://appshunter.io/developer/1022031549) | [Justin Medeiros](https://appshunter.io/developer/1782040504) |

## What reviewers say

### MRF Tracking Viewer

[App page](https://appshunter.io/ios/app/mrf-tracking-viewer/id1468068457)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fire Pump Calc

[App page](https://appshunter.io/ios/app/fire-pump-calc/id6739542307)

This professional hydraulic calculator assists fire service professionals and students with complex calculations for pump operations. It accurately determines pump discharge pressure, friction loss, elevation changes, and appliance pressure loss, all designed for real-world fireground scenarios. The app works offline and requires no account for immediate use.

**Highlights:** Pump Discharge Pressure (PDP) calculation, Friction loss for any hose lay, Elevation gain and loss calculation, Appliance pressure loss, Nozzle pressure calculation, Offline functionality, No account required

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MRF Tracking Viewer free?

MRF Tracking Viewer is free to download, with no in-app purchases.

### Is Fire Pump Calc free?

Fire Pump Calc is free to download, with no in-app purchases.

### Do MRF Tracking Viewer or Fire Pump Calc have ads?

Neither MRF Tracking Viewer nor Fire Pump Calc shows ads.

### Which is updated more often, MRF Tracking Viewer or Fire Pump Calc?

MRF Tracking Viewer ships an update every 6 weeks, and Fire Pump Calc every 8 months. Most recently, MRF Tracking Viewer was updated on September 13, 2026 and Fire Pump Calc on August 19, 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.*