Comparison

ProEngineer Calculator vs QR Code Maker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ProEngineer Calculator

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
Read full description

ProEngineer Calculator — Your Comprehensive Engineering Companion Engineered for professional engineers and engineering students alike, ProEngineering Calculator combines powerful tools and practical resources to tackle complex calculations and process management with ease. From chemical stoichiometry to electrical and flow mechanics, this app is built to optimize accuracy and efficiency in all your engineering tasks. Features that Empower Your Engineering Work: Stoichiometry & Material Balances: Perform precise chemical reaction and mass flow calculations for process design and analysis. Thermodynamics Calculations: Access essential formulas for heat transfer, energy balances, and thermodynamic properties. Process Flow Diagram (PFD) Reference: Visualize and reference standardized PFD symbols and conventions within the app. Electrical Calculations: Solve electrical circuit problems and perform power, voltage, and current assessments. Flow Mechanics Calculator: Analyze fluid flow, pressure drops, pump performance, and piping systems accurately. Process Timeline: Organize and plan process stages with clear, visual timelines. Consultant Directory: Locate and connect with industry experts to support your projects. Intuitive Interface: Designed for quick data input and immediate results — perfect for both on-site work and office environments. ProEngineering Calculator is an essential engineering toolkit for professionals in chemical, mechanical, process, and electrical engineering fields. Boost your productivity, minimize errors, and take your engineering projects to the next level. Download now to make engineering smarter, faster, and easier.

About

QR Code Maker

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
Read full description

QR Code Generator and Creator is a simple, powerful tool for creating QR codes. With a large library of beautiful templates, you can quickly generate QR codes for website links, text, Wi‑Fi, business cards, SMS, and social media accounts. Customize every detail to match your style—colors, eyes, patterns, and frames. Add your own logo or text label to create a QR code that stands out and looks professional. Give it a try and create a QR code you’re proud to share. Create QR Codes: Generate QR codes for URLs, contacts, text, Wi‑Fi, business cards, SMS, and social media. Make information easy to display and share. Beautiful Templates: Choose from many well‑designed templates to create stunning QR codes in just a few steps. New templates help you keep your designs fresh and unique. Highly Customizable: Colors: Choose from vibrant and clean color palettes Eyes: Pick eye styles that match your overall design Patterns: Use different patterns for a distinct look Logo: Add your own logo or icon for branding Text: Add a caption to explain your QR code QR Code Scanner: Scan QR codes instantly. You can also scan from the photo library, copy the content, and share it with others. Export Options: Export your QR codes in multiple formats and sizes. Image Format: PNG / JPEG / WebP Image Size: X1 (800×800), X2 (1600×1600), X3 (2400×2400) Error Correction: 7%, 15%, 25%, 30% If you have any questions, please contact us: phanith.ny@icloud.com Terms of Use: https://spendlists.com/qrcode/term-of-use.html Privacy Policy: https://spendlists.com/qrcode/privacy-policy.html

Screenshots

ProEngineer Calculator4 screens
QR Code Maker4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
ProEngineer Calculator versus QR Code Maker: the parameters behind the verdict, then further details
ParameterProEngineer CalculatorQR Code Maker
Price$19.99Free — better
Rating5.0 (1 ratings) — better4.0 (1 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings11
Update frequencyMonthly — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.1 — better26
Further details — not scored
Size46 MB17 MB
Age rating4+4+
DeveloperMargaret HayesPhanith Ny

Customer experience

ProEngineer Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

QR Code Maker

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ProEngineer Calculator

No in-app purchases

None

QR Code Maker

No in-app purchases

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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