# Mechanical Engineer vs Pipe Tools

The clearest difference is review sentiment: Pipe Tools at 79% against Mechanical Engineer's 30%. Pipe Tools also leads on monetization model (free vs free with in-app purchases) and iOS requirement (15.1 vs 17.6). Mechanical Engineer's advantage is update cadence (every 2 months vs every 36 months) and rating (4.4 vs 4.2). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Mechanical Engineer sells 3 in-app purchases, starting at $0.99 per month and Pipe Tools sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Mechanical Engineer holds the better App Store score, 4.4 against 4.2. Both are backed by a comparable volume of ratings — 8 and 20 respectively. Written reviews complicate that: 30% of Mechanical Engineer's written reviews are positive against 79% of Pipe Tools's, so the app with the better star average is not the one people write more warmly about.

Mechanical Engineer ships an update every 2 months, Pipe Tools every 36 months. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Mechanical Engineer | Pipe Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (8 ratings)](https://appshunter.io/ios/app/mechanical-engineer/id327055140/reviews)** | [4.2 (20 ratings)](https://appshunter.io/ios/app/pipe-tools/id372454624/reviews) |
| Number of ratings | 8 | **20** |
| Positive reviews | 29.6% of reviews | **78.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 36 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 43 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Historycentral.com](https://appshunter.io/developer/1744330560) | [Bri-Steel Manufacturing](https://appshunter.io/developer/968778552) |

## What reviewers say

### Mechanical Engineer

[App page](https://appshunter.io/ios/app/mechanical-engineer/id327055140)

This app provides over 300 essential mechanical engineering formulas across various domains. It allows users to calculate, save, compare, and share results, aiding in project optimization and decision-making. Users can access a limited number of calculations for free, with a subscription unlocking full functionality.

**Highlights:** Over 300 mechanical engineering formulas, Covers diverse engineering domains, Save and compare formula results, Share calculation outcomes, Intuitive and practical interface, Regular updates based on user input

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Pro Quarterly | $0.99 | per 3 months |
| Pro Yearly | $2.99 | per year |


### Pipe Tools

[App page](https://appshunter.io/ios/app/pipe-tools/id372454624)

This app provides a comprehensive steel pipe handbook with charts for wall thickness, mass, and pressure calculations. It facilitates quick conversions and cost comparisons, allowing users to prepare and send customized PDF quotes for pipe sales.

**Highlights:** Steel pipe charts (wall thickness, mass), Unit conversions (feet, meters, pounds, kg), Pipe cost comparison, Customizable PDF quote generation, Mechanical and hardness conversions, Pressure and wall thickness calculations

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro Tools | $0.99 | one-time |


## Frequently asked questions

### Is Mechanical Engineer free?

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

### Is Pipe Tools free?

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

### Which has better reviews, Mechanical Engineer or Pipe Tools?

Mechanical Engineer is rated higher. Mechanical Engineer averages 4.4 out of 5 from 8 ratings, while Pipe Tools averages 4.2 from 20 ratings.

### Do Mechanical Engineer or Pipe Tools have ads?

Neither Mechanical Engineer nor Pipe Tools shows ads.

### Which is updated more often, Mechanical Engineer or Pipe Tools?

Mechanical Engineer ships an update every 2 months, and Pipe Tools every 36 months. Most recently, Mechanical Engineer was updated on October 6, 2026 and Pipe Tools on October 8, 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.*