# Mechanical Engineering Toolkit vs ScanMasterAI

The clearest difference is ads: ScanMasterAI at none against Mechanical Engineering Toolkit's shown. Mechanical Engineering Toolkit's advantage is update cadence (every 8 days vs every 6 weeks). On price, in-app purchases, 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 and ScanMasterAI sells 3 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 ships an update every 8 days, ScanMasterAI every 6 weeks. The most recent releases landed on September 24, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Mechanical Engineering Toolkit | ScanMasterAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (64 ratings)](https://appshunter.io/ios/app/mechanical-engineering-toolkit/id1601099443/reviews)** | — |
| Number of ratings | **64** | — |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 6 weeks |
| Monetization | Ad-supported | — |
| Size | 38 MB | 23 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [APPS BAY LIMITED](https://appshunter.io/developer/1599035519) | [钦美 范](https://appshunter.io/developer/1884328075) |

## 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 |


### ScanMasterAI

[App page](https://appshunter.io/ios/app/scanmasterai-ocr-scanner/id6760456887)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ScanMasterAI Pro Weekly | $1.99 | per 7 days |
| ScanMasterAI Pro Monthly | $4.99 | per month |
| ScanMasterAI Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Mechanical Engineering Toolkit free?

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

### Is ScanMasterAI free?

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

### Do Mechanical Engineering Toolkit or ScanMasterAI have ads?

Mechanical Engineering Toolkit shows ads; ScanMasterAI does not.

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

Mechanical Engineering Toolkit ships an update every 8 days, and ScanMasterAI every 6 weeks. Most recently, Mechanical Engineering Toolkit was updated on September 24, 2026 and ScanMasterAI 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.*