# Pipe Flow Liquid Pressure Drop vs Mechanical Engineering Toolkit

The clearest difference is ads: Pipe Flow Liquid Pressure Drop at none against Mechanical Engineering Toolkit's shown. Pipe Flow Liquid Pressure Drop also leads on rating (5.0 vs 4.8) and iOS requirement (11.0 vs 15.0). Mechanical Engineering Toolkit's advantage is monetization model (ad-supported vs free with in-app purchases) and ratings volume (64 vs 12). On price, update cadence, in-app purchases 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 and Mechanical Engineering Toolkit sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Pipe Flow Liquid Pressure Drop holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Mechanical Engineering Toolkit has 64 ratings behind it against 12, so its average is the more settled of the two.

Pipe Flow Liquid Pressure Drop ships an update fortnightly, Mechanical Engineering Toolkit every 8 days. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Pipe Flow Liquid Pressure Drop | Mechanical Engineering Toolkit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (12 ratings)](https://appshunter.io/ios/app/pipe-flow-liquid-pressure-drop/id1582478584/reviews)** | [4.8 (64 ratings)](https://appshunter.io/ios/app/mechanical-engineering-toolkit/id1601099443/reviews) |
| Number of ratings | 12 | **64** |
| Positive reviews | — | 57.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 8 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 68 MB | 38 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Pipe Flow Software](https://appshunter.io/developer/1193064957) | [APPS BAY LIMITED](https://appshunter.io/developer/1599035519) |

## What reviewers say

### 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 |


### Mechanical Engineering Toolkit

[App page](https://appshunter.io/ios/app/mechanical-engineering-toolkit/id1601099443)

This utility app provides a comprehensive collection of engineering equations and formulas for students and professionals. Easily perform calculations by selecting a formula and inputting variables, with detailed instructions and reference material included.

**Highlights:** Engineering equations and formulas, Mechanics of Material calculations, Theory of Elasticity formulas, Composite Material properties, Reference material, Variable input for calculations

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Pipe Flow Liquid Pressure Drop free?

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

### Is Mechanical Engineering Toolkit free?

Mechanical Engineering Toolkit is free to download, with in-app purchases available.

### Which has better reviews, Pipe Flow Liquid Pressure Drop or Mechanical Engineering Toolkit?

Pipe Flow Liquid Pressure Drop is rated higher. Pipe Flow Liquid Pressure Drop averages 5.0 out of 5 from 12 ratings, while Mechanical Engineering Toolkit averages 4.8 from 64 ratings.

### Do Pipe Flow Liquid Pressure Drop or Mechanical Engineering Toolkit have ads?

Mechanical Engineering Toolkit shows ads; Pipe Flow Liquid Pressure Drop does not.

### Which is updated more often, Pipe Flow Liquid Pressure Drop or Mechanical Engineering Toolkit?

Pipe Flow Liquid Pressure Drop ships an update fortnightly, and Mechanical Engineering Toolkit every 8 days. Most recently, Pipe Flow Liquid Pressure Drop was updated on September 22, 2026 and Mechanical Engineering Toolkit on September 24, 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.*