# SHO vs Hydro Test Pressure

The clearest difference is price: SHO at Free against Hydro Test Pressure's $1.99. SHO also leads on update cadence (every 2 months vs every 73 months) and iOS requirement (14.2 vs 18.5). On ads, in-app purchases and device support there is nothing between them.

SHO is free to download; Hydro Test Pressure costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SHO ships an update every 2 months, Hydro Test Pressure every 73 months. The most recent releases landed on June 2, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | SHO | Hydro Test Pressure |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.2 (12 ratings)](https://appshunter.io/ios/app/sho-flow/id1447418345/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 73 months |
| Monetization | Free | — |
| Size | 145 MB | 1 MB |
| Requires iOS | **14.2** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Task Force Tips](https://appshunter.io/developer/1447418344) | [Imran Pinjara](https://appshunter.io/developer/1484488781) |

## What reviewers say

### SHO

[App page](https://appshunter.io/ios/app/sho-flow/id1447418345)

This app assists firefighters in calculating water flow rates, pump discharge pressures, and nozzle reactions. It can be used with a Bluetooth flow meter or as a standalone calculator with established fire flow formulas. Educational videos on water flow are also included.

**Highlights:** Calculate fire hose flow rates, Determine pump discharge pressures, Calculate nozzle reaction, Perform NFPA 1962 nozzle flow tests, Standalone water flow calculator, Water flow education videos

**Features:** macOS Compatibility

**In-app purchases:** none


### Hydro Test Pressure

[App page](https://appshunter.io/ios/app/hydro-test-pressure/id1491873084)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SHO free?

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

### Is Hydro Test Pressure free?

Hydro Test Pressure costs $1.99, with no in-app purchases.

### Do SHO or Hydro Test Pressure have ads?

Neither SHO nor Hydro Test Pressure shows ads.

### Which is updated more often, SHO or Hydro Test Pressure?

SHO ships an update every 2 months, and Hydro Test Pressure every 73 months. Most recently, SHO was updated on June 2, 2026 and Hydro Test Pressure on September 15, 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.*