# Mechanical Engineering Toolkit vs Hydraulic Calculator Engineer

The clearest difference is review sentiment: Mechanical Engineering Toolkit at 57% against Hydraulic Calculator Engineer's 0%. Mechanical Engineering Toolkit also leads on rating (4.8 vs 4.3) and update cadence (every 8 days vs every 22 months). Hydraulic Calculator Engineer's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Mechanical Engineering Toolkit sells 1 one-off in-app purchase. Hydraulic Calculator Engineer asks for nothing beyond the download.

Mechanical Engineering Toolkit holds the better App Store score, 4.8 against 4.3. 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 0% of Hydraulic Calculator Engineer's.

Mechanical Engineering Toolkit ships an update every 8 days, Hydraulic Calculator Engineer every 22 months. The most recent releases landed on September 24, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Mechanical Engineering Toolkit | Hydraulic Calculator Engineer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (64 ratings)](https://appshunter.io/ios/app/mechanical-engineering-toolkit/id1601099443/reviews)** | [4.3 (9 ratings)](https://appshunter.io/ios/app/hydraulic-calculator-engineer/id1664790770/reviews) |
| Number of ratings | **64** | 9 |
| Positive reviews | **57.1% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 22 months |
| Monetization | Ad-supported | **Free** |
| Size | 38 MB | 21 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [APPS BAY LIMITED](https://appshunter.io/developer/1599035519) | [Arsosa Network Inc.](https://appshunter.io/developer/1209042440) |

## 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 |


### Hydraulic Calculator Engineer

[App page](https://appshunter.io/ios/app/hydraulic-calculator-engineer/id1664790770)

This app offers a suite of hydraulic calculations for technicians and engineers. It simplifies complex hydraulics by automatically computing results based on user-entered values, eliminating the need for manual formula application.

**Highlights:** Cylinder Calculation, Power Calculation, Pressure Difference, Piston Diameter, Speed Calculation, Lifting Time, Volume Flow

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

**In-app purchases:** none


## Frequently asked questions

### Is Mechanical Engineering Toolkit free?

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

### Is Hydraulic Calculator Engineer free?

Hydraulic Calculator Engineer is free to download, with no in-app purchases.

### Which has better reviews, Mechanical Engineering Toolkit or Hydraulic Calculator Engineer?

Mechanical Engineering Toolkit is rated higher. Mechanical Engineering Toolkit averages 4.8 out of 5 from 64 ratings, while Hydraulic Calculator Engineer averages 4.3 from 9 ratings.

### Do Mechanical Engineering Toolkit or Hydraulic Calculator Engineer have ads?

Mechanical Engineering Toolkit shows ads; Hydraulic Calculator Engineer does not.

### Which is updated more often, Mechanical Engineering Toolkit or Hydraulic Calculator Engineer?

Mechanical Engineering Toolkit ships an update every 8 days, and Hydraulic Calculator Engineer every 22 months. Most recently, Mechanical Engineering Toolkit was updated on September 24, 2026 and Hydraulic Calculator Engineer on September 10, 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.*