# Mec Eng Tools vs Pipe Flow Liquid Pressure Drop

The clearest difference is update cadence: Pipe Flow Liquid Pressure Drop at fortnightly against Mec Eng Tools's every 2 months. Pipe Flow Liquid Pressure Drop also leads on iOS requirement (11.0 vs 15.1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Mec Eng Tools sells 10 one-off in-app purchases and Pipe Flow Liquid Pressure Drop sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Mec Eng Tools ships an update every 2 months, Pipe Flow Liquid Pressure Drop fortnightly. The most recent releases landed on November 6, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Mec Eng 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 | 21.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 41 MB | 68 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eduardo Almeida](https://appshunter.io/developer/906209752) | [Pipe Flow Software](https://appshunter.io/developer/1193064957) |

## What reviewers say

### Mec Eng Tools

[App page](https://appshunter.io/ios/app/mec-eng-tools/id1046405234)

This utility app calculates thermodynamic properties using IAPWS-97 equations. It allows users to determine various properties like pressure, temperature, enthalpy, and specific volume based on different input parameters. The app supports multiple units for calculations.

**Highlights:** IAPWS-97 equation calculations, Calculate properties from pressure and temperature, Calculate properties from pressure and enthalpy, Calculate properties from pressure and entropy, Calculate properties from pressure and quality, Support for multiple units

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade Steam Tables | $3.99 | one-time |
| Stress & Strain | $4.99 | one-time |
| Machine Design | $4.99 | one-time |
| Pressure Vessels | $4.99 | one-time |
| Fluids & Piping Pack | $6.99 | one-time |
| Thermal Pack: Steam Complement | $6.99 | one-time |
| Thermal Sciences Pack | $10.49 | one-time |
| Solids & Design Pack | $10.49 | one-time |
| Collection: Steam Complement | $24.49 | one-time |
| Complete Engineering Collection | $27.99 | one-time |


### 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 Mec Eng Tools free?

Mec Eng Tools is free to download, with in-app purchases available.

### Is Pipe Flow Liquid Pressure Drop free?

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

### Do Mec Eng Tools or Pipe Flow Liquid Pressure Drop have ads?

Neither Mec Eng Tools nor Pipe Flow Liquid Pressure Drop shows ads.

### Which is updated more often, Mec Eng Tools or Pipe Flow Liquid Pressure Drop?

Mec Eng Tools ships an update every 2 months, and Pipe Flow Liquid Pressure Drop fortnightly. Most recently, Mec Eng Tools was updated on November 6, 2026 and Pipe Flow Liquid Pressure Drop on November 9, 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.*