# Mechanical Engineering Toolkit vs Piping Engineering Toolbox

The clearest difference is rating: Mechanical Engineering Toolkit at 4.8 against Piping Engineering Toolbox's 3.7. Mechanical Engineering Toolkit also leads on update cadence (weekly vs every 3 months) and monetization model (ad-supported vs free with in-app purchases). Piping Engineering Toolbox's advantage is ads (none vs shown) and iOS requirement (12.0 vs 15.0). On price, review sentiment, in-app purchases and device support there is nothing between them.

Both are free to download. Mechanical Engineering Toolkit sells 1 one-off in-app purchase and Piping Engineering Toolbox sells 4 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Mechanical Engineering Toolkit holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: Mechanical Engineering Toolkit has 64 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 57% of Mechanical Engineering Toolkit's written reviews are positive against 50% of Piping Engineering Toolbox's.

Mechanical Engineering Toolkit ships an update weekly, Piping Engineering Toolbox every 3 months. The most recent releases landed on October 10, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Mechanical Engineering Toolkit | Piping Engineering Toolbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (64 ratings)](https://appshunter.io/ios/app/mechanical-engineering-toolkit/id1601099443/reviews)** | [3.7 (9 ratings)](https://appshunter.io/ios/app/piping-engineering-toolbox/id6654914337/reviews) |
| Number of ratings | **64** | 9 |
| Positive reviews | **57.1% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 40 MB | 61 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [APPS BAY LIMITED](https://appshunter.io/developer/1599035519) | [Shital Gorasiya](https://appshunter.io/developer/1737199158) |

## What reviewers say

### 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 |


### Piping Engineering Toolbox

[App page](https://appshunter.io/ios/app/piping-engineering-toolbox/id6654914337)

This app provides piping engineers with essential tools, dimensions, and standards for design and analysis. It includes calculators, checklists, software shortcuts, and educational resources to streamline work and enhance knowledge.

**Highlights:** Pipe wall thickness calculator, Branch reinforcement calculator, Piping checklists, Fitting dimensions, Software shortcuts (AutoCAD, MicroStation), Piping standards references (ASME, ASTM), Industry blog and quizzes

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $1.99 | per 7 days |
| Monthly Premium | $3.99 | per month |
| Yearly Premium | $7.99 | per year |
| Lifetime Premium | $12.99 | one-time |


## Frequently asked questions

### Is Mechanical Engineering Toolkit free?

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

### Is Piping Engineering Toolbox free?

Piping Engineering Toolbox is free to download, with in-app purchases available.

### Which has better reviews, Mechanical Engineering Toolkit or Piping Engineering Toolbox?

Mechanical Engineering Toolkit is rated higher. Mechanical Engineering Toolkit averages 4.8 out of 5 from 64 ratings, while Piping Engineering Toolbox averages 3.7 from 9 ratings.

### Do Mechanical Engineering Toolkit or Piping Engineering Toolbox have ads?

Mechanical Engineering Toolkit shows ads; Piping Engineering Toolbox does not.

### Which is updated more often, Mechanical Engineering Toolkit or Piping Engineering Toolbox?

Mechanical Engineering Toolkit ships an update weekly, and Piping Engineering Toolbox every 3 months. Most recently, Mechanical Engineering Toolkit was updated on October 10, 2026 and Piping Engineering Toolbox 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.*