# Mechanical Engineer vs NotePrints

The clearest difference is price: Mechanical Engineer at Free against NotePrints's $0.99. Mechanical Engineer also leads on ratings volume (8 vs 1). NotePrints's advantage is rating (5.0 vs 4.4) and in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

Mechanical Engineer is free to download; NotePrints costs $0.99 up front. Mechanical Engineer sells 3 in-app purchases, starting at $0.99 per month. NotePrints asks for nothing beyond the download.

NotePrints holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Mechanical Engineer has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 30% of Mechanical Engineer's written reviews are positive against 50% of NotePrints's.

Mechanical Engineer ships an update every 2 months, NotePrints every 9 days. The most recent releases landed on October 6, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Mechanical Engineer | NotePrints |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.4 (8 ratings)](https://appshunter.io/ios/app/mechanical-engineer/id327055140/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/noteprints/id1034155669/reviews)** |
| Number of ratings | **8** | 1 |
| Positive reviews | 29.6% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 5 MB | 32 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Historycentral.com](https://appshunter.io/developer/1744330560) | [Scott Saia](https://appshunter.io/developer/1034155668) |

## 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 |


### NotePrints

[App page](https://appshunter.io/ios/app/noteprints/id1034155669)

This app allows you to view, annotate, and create PDF documents with powerful markup tools. It handles large files and offers extensive zoom capabilities, along with drawing and text editing features. You can also manage files, extract pages, and share your work across devices.

**Highlights:** View and markup PDF files, Support for large format and multi-page PDFs, 300x zoom capability, Vector graphics drawing engine, Create new PDFs from camera or photos, Add shapes, rich text, and hand drawings, Cut, copy, and paste between documents, File management and page manipulation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mechanical Engineer free?

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

### Is NotePrints free?

NotePrints costs $0.99, with no in-app purchases.

### Which has better reviews, Mechanical Engineer or NotePrints?

NotePrints is rated higher. Mechanical Engineer averages 4.4 out of 5 from 8 ratings, while NotePrints averages 5.0 from 1 ratings.

### Do Mechanical Engineer or NotePrints have ads?

Neither Mechanical Engineer nor NotePrints shows ads.

### Which is updated more often, Mechanical Engineer or NotePrints?

Mechanical Engineer ships an update every 2 months, and NotePrints every 9 days. Most recently, Mechanical Engineer was updated on October 6, 2026 and NotePrints 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.*