# Propane People Inc. vs Reverse Flow

The clearest difference is update cadence: Reverse Flow at weekly against Propane People Inc.'s every 6 months. Propane People Inc.'s advantage is iOS requirement (12.2 vs 15.0). 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.

Propane People Inc. ships an update every 6 months, Reverse Flow weekly. The most recent releases landed on November 4, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Propane People Inc. | Reverse Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/reverse-flow-fire-hydraulics/id6775030535/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Monetization | — | Free |
| Size | 56 MB | 8 MB |
| Requires iOS | **12.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rural Computer Consultants, Inc.](https://appshunter.io/developer/640795441) | [DEREK ANDREW MURDOCK](https://appshunter.io/developer/6775030537) |

## What reviewers say

### Propane People Inc.

[App page](https://appshunter.io/ios/app/propane-people-inc/id6475793623)

**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:** none


## Frequently asked questions

### Is Propane People Inc. free?

Propane People Inc. is free to download, with no in-app purchases.

### Is Reverse Flow free?

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

### Do Propane People Inc. or Reverse Flow have ads?

Neither Propane People Inc. nor Reverse Flow shows ads.

### Which is updated more often, Propane People Inc. or Reverse Flow?

Propane People Inc. ships an update every 6 months, and Reverse Flow weekly. Most recently, Propane People Inc. was updated on November 4, 2026 and Reverse Flow on November 10, 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.*