# PAM tools vs Pipe Flow Liquid Pressure Drop

The clearest difference is in-app purchases: PAM tools at none against Pipe Flow Liquid Pressure Drop's 1. Pipe Flow Liquid Pressure Drop's advantage is update cadence (fortnightly vs every 5 months) and iOS requirement (11.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Pipe Flow Liquid Pressure Drop sells 1 one-off in-app purchase. PAM tools asks for nothing beyond the download.

PAM tools ships an update every 5 months, Pipe Flow Liquid Pressure Drop fortnightly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | PAM tools | Pipe Flow Liquid Pressure Drop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (12 ratings)](https://appshunter.io/ios/app/pipe-flow-liquid-pressure-drop/id1582478584/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 24 MB | 68 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Saint-Gobain](https://appshunter.io/developer/543924473) | [Pipe Flow Software](https://appshunter.io/developer/1193064957) |

## What reviewers say

### PAM tools

[App page](https://appshunter.io/ios/app/pam-tools/id1080963133)

This application assists engineers and design offices with calculations for water, sewer, industry, and irrigation networks. It provides tools for sizing and installing ductile iron pipelines, offering calculations for pressure, depth, head losses, and more.

**Highlights:** Allowable pressure calculation, Depth of cover calculation, Head losses calculation, Thrust massif calculation, Anchor length calculation, Pressure reducing valve calculation, Flanged joints calculation

**Features:** macOS Compatibility

**In-app purchases:** none


### Pipe Flow Liquid Pressure Drop

[App page](https://appshunter.io/ios/app/pipe-flow-liquid-pressure-drop/id1582478584)

This app calculates friction and fitting losses in liquid flow systems using the Darcy-Weisbach equation. It offers extensive databases for fluids, pipes, and fittings, with customizable units and reporting options. Verified against published data, it's designed for engineers needing accurate pressure drop calculations.

**Highlights:** Friction and fitting loss calculations, Darcy-Weisbach equation with Colebrook-White, Integrated databases for fluids, pipes, and fittings, User-definable custom data, Imperial and Metric unit support, Professional Excel and PDF reports, Results verification against published data

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pipe Flow Pressure Drop | $4.99 | one-time |


## Frequently asked questions

### Is PAM tools free?

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

### Is Pipe Flow Liquid Pressure Drop free?

Pipe Flow Liquid Pressure Drop is free to download, with in-app purchases available.

### Do PAM tools or Pipe Flow Liquid Pressure Drop have ads?

Neither PAM tools nor Pipe Flow Liquid Pressure Drop shows ads.

### Which is updated more often, PAM tools or Pipe Flow Liquid Pressure Drop?

PAM tools ships an update every 5 months, and Pipe Flow Liquid Pressure Drop fortnightly. Most recently, PAM tools was updated on November 2, 2026 and Pipe Flow Liquid Pressure Drop on November 3, 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.*