# Pipe Flow Gas Flow Rate vs Mechanical Engineering Toolkit

The clearest difference is ads: Pipe Flow Gas Flow Rate at none against Mechanical Engineering Toolkit's shown. Pipe Flow Gas Flow Rate also leads on rating (5.0 vs 4.8) and monetization model (free vs ad-supported). Mechanical Engineering Toolkit's advantage is update cadence (weekly vs fortnightly) and ratings volume (64 vs 7). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Pipe Flow Gas Flow Rate 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 Gas Flow Rate 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 7, so its average is the more settled of the two.

Pipe Flow Gas Flow Rate ships an update fortnightly, Mechanical Engineering Toolkit weekly. The most recent releases landed on October 2, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Pipe Flow Gas Flow Rate | Mechanical Engineering Toolkit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/pipe-flow-gas-flow-rate/id1582819662/reviews)** | [4.8 (64 ratings)](https://appshunter.io/ios/app/mechanical-engineering-toolkit/id1601099443/reviews) |
| Number of ratings | 7 | **64** |
| Positive reviews | — | 57.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | **Free** | Ad-supported |
| Size | 67 MB | 43 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 Gas Flow Rate

[App page](https://appshunter.io/ios/app/pipe-flow-gas-flow-rate/id1582819662)

This utility app calculates gas flow rates in pipes, accounting for friction and fitting losses using compressible isothermal equations. It offers extensive databases for materials, fittings, and gases, with customizable units and reporting options.

**Highlights:** Gas flow rate calculation, Friction and fitting loss analysis, Compressible isothermal equations, Extensive material and fitting databases, Customizable units and reporting, Gas properties calculator

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pipe Flow Gas Flow Rate | $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 Gas Flow Rate free?

Pipe Flow Gas Flow Rate 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 Gas Flow Rate or Mechanical Engineering Toolkit?

Pipe Flow Gas Flow Rate is rated higher. Pipe Flow Gas Flow Rate averages 5.0 out of 5 from 7 ratings, while Mechanical Engineering Toolkit averages 4.8 from 64 ratings.

### Do Pipe Flow Gas Flow Rate or Mechanical Engineering Toolkit have ads?

Mechanical Engineering Toolkit shows ads; Pipe Flow Gas Flow Rate does not.

### Which is updated more often, Pipe Flow Gas Flow Rate or Mechanical Engineering Toolkit?

Pipe Flow Gas Flow Rate ships an update fortnightly, and Mechanical Engineering Toolkit weekly. Most recently, Pipe Flow Gas Flow Rate was updated on October 2, 2026 and Mechanical Engineering Toolkit on October 16, 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.*