# US Fire Pump vs Reverse Flow

The clearest difference is in-app purchases: US Fire Pump at none against Reverse Flow's 4. US Fire Pump also leads on iOS requirement (10.0 vs 15.0). Reverse Flow's advantage is update cadence (weekly vs every 3 weeks). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Reverse Flow sells 4 in-app purchases, starting at $2.99 per month. US Fire Pump asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for US Fire Pump against 5.0 for Reverse Flow. Both are backed by a comparable volume of ratings — 9 and 5 respectively.

US Fire Pump ships an update every 3 weeks, Reverse Flow weekly. The most recent releases landed on September 20, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | US Fire Pump | Reverse Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (9 ratings)](https://appshunter.io/ios/app/us-fire-pump/id1507974220/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/reverse-flow-fire-hydraulics/id6775030535/reviews) |
| Number of ratings | **9** | 5 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free | Free |
| Size | 82 MB | 8 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [US Fire Pump Company, LLC](https://appshunter.io/developer/1507974219) | [DEREK ANDREW MURDOCK](https://appshunter.io/developer/6775030537) |

## What reviewers say

### US Fire Pump

[App page](https://appshunter.io/ios/app/us-fire-pump/id1507974220)

This app provides access to a comprehensive line of high-velocity and submersible fire pumps, along with supplemental fire equipment for municipal and industrial professionals. It also highlights the company's extensive emergency response team and global equipment fleet.

**Highlights:** High-velocity fire pumps, Submersible pumps, Supplemental fire equipment, Emergency response team, Global equipment fleet

**Features:** macOS Compatibility

**In-app purchases:** none


### Reverse Flow

[App page](https://appshunter.io/ios/app/reverse-flow-fire-hydraulics/id6775030535)

This professional fireground hydraulics platform assists firefighters and pump operators in calculating complex flow rates, pump discharge pressures, and relay pumping requirements. It supports various nozzle types and allows for custom hose coefficients and elevation adjustments for accurate operational planning and decision support.

**Highlights:** Reverse Flow calculations, Required PDP calculations, Relay Pumping calculations, Split Lay analysis, Pump Chart storage, Nozzle support, Custom hose coefficients

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reverse Flow Monthly Support $3 | $2.99 | per month |
| Reverse Flow Monthly Support $10 | $9.99 | per month |
| Reverse Flow One-Time Support $5 | $4.99 | one-time |
| Reverse Flow Pro | $4.99 | one-time |


## Frequently asked questions

### Is US Fire Pump free?

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

### Is Reverse Flow free?

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

### Which has better reviews, US Fire Pump or Reverse Flow?

US Fire Pump and Reverse Flow are both rated 5.0 out of 5 on the App Store, from 9 and 5 ratings respectively.

### Do US Fire Pump or Reverse Flow have ads?

Neither US Fire Pump nor Reverse Flow shows ads.

### Which is updated more often, US Fire Pump or Reverse Flow?

US Fire Pump ships an update every 3 weeks, and Reverse Flow weekly. Most recently, US Fire Pump was updated on September 20, 2026 and Reverse Flow on October 1, 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.*