# ProEngineer Calculator vs QR Code Maker

The clearest difference is price: QR Code Maker at Free against ProEngineer Calculator's $19.99. ProEngineer Calculator's advantage is rating (5.0 vs 4.0) and iOS requirement (15.1 vs 26). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

QR Code Maker is free to download; ProEngineer Calculator costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ProEngineer Calculator holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

ProEngineer Calculator ships an update monthly, QR Code Maker every 6 weeks. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | ProEngineer Calculator | QR Code Maker |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/proengineer-calculator/id6752825468/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/qr-code-maker-qrgen/id6757327804/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Paid | **Free** |
| Size | 46 MB | 17 MB |
| Requires iOS | **15.1** | 26 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Margaret Hayes](https://appshunter.io/developer/1840974547) | [Phanith Ny](https://appshunter.io/developer/1424424060) |

## What reviewers say

### ProEngineer Calculator

[App page](https://appshunter.io/ios/app/proengineer-calculator/id6752825468)

This app provides engineers and students with a comprehensive suite of tools for complex calculations across various engineering disciplines. It offers features for stoichiometry, thermodynamics, electrical, and fluid mechanics, along with process visualization and project management aids.

**Highlights:** Stoichiometry & Material Balances, Thermodynamics Calculations, Electrical Calculations, Flow Mechanics Calculator, Process Timeline, Consultant Directory

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

**In-app purchases:** none


### QR Code Maker

[App page](https://appshunter.io/ios/app/qr-code-maker-qrgen/id6757327804)

Easily generate and customize QR codes for various purposes, including links, text, Wi-Fi, and contact information. Personalize designs with colors, logos, and frames. Includes a built-in scanner for quick access to information.

**Highlights:** QR code generation for URLs, text, Wi-Fi, contacts, Customizable designs with colors, patterns, and logos, Pre-designed templates for quick creation, Integrated QR code scanner, Export in PNG, JPEG, and WebP formats, Adjustable error correction levels

**In-app purchases:** none


## Frequently asked questions

### Is ProEngineer Calculator free?

ProEngineer Calculator costs $19.99, with no in-app purchases.

### Is QR Code Maker free?

QR Code Maker is free to download, with no in-app purchases.

### Which has better reviews, ProEngineer Calculator or QR Code Maker?

ProEngineer Calculator is rated higher. ProEngineer Calculator averages 5.0 out of 5 from 1 ratings, while QR Code Maker averages 4.0 from 1 ratings.

### Do ProEngineer Calculator or QR Code Maker have ads?

Neither ProEngineer Calculator nor QR Code Maker shows ads.

### Which is updated more often, ProEngineer Calculator or QR Code Maker?

ProEngineer Calculator ships an update monthly, and QR Code Maker every 6 weeks. Most recently, ProEngineer Calculator was updated on October 4, 2026 and QR Code Maker on October 1, 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.*