Engineering Unit Converter vs Steel Profiles
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Engineering Unit Converter
This app offers a powerful and user-friendly way to convert units and currencies. It includes a built-in calculator, mass/mole fraction converter, thermocouple module, and physical constants database. Customize your display and input mathematical expressions for complex conversions.
- Unit conversion
- Currency conversion
- Built-in calculator
- Mass/Mole Fraction Converter
- Physical constants database
- Customizable display
- Mathematical expression input
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A streamlined, powerful, user-friendly unit and currency converter designed for use by everyone and built by engineering professionals! No dials to turn, no gimmicky interfaces, no need to type your unit... just enter a value in the unit you have and see the conversion for the one you want as well as others all at once. All laid out in big, easy to read text with an intelligent, customizable display system. There is also a versatile Currency converter included in the app! The app also includes a powerful built-in Calculator and a spreadsheet-style Mass Fraction/Mole Fraction Converter. Also included are a very useful Thermocouple module and a database of physical constants. Conversions aren't limited to just one pair of units. There are 40+ different types of units currently in the app. Set your preferred units or most frequently used units for quick access to the data most needed. Don't want to see all of the units in a given category? You can reorder and hide units based on your needs. The app is designed to accept mathematical expressions as your input! For example, if you need to convert 1 3/8 inches to mm, just enter 1+3/8 in the inches cell... and you can do far more complex operations as well! Detailed math help is available under Settings+. As another bonus, we have provided a control panel that can be used to tailor the colors of the app to the user's preferences. You'll find this feature under Settings+. While you're there, check out the links to our other apps and find us on social media! Like us on Facebook: www.facebook.com/ChemEApp Follow us on Twitter: @Vector254
Steel Profiles
Access a vast library of steel section properties for structural engineers and construction professionals. Browse over 5,000 steel shapes across international standards, compare profiles, and calculate weights. Includes advanced filtering and unit conversion tools.
- Browse 5,000+ steel shapes
- Compare up to 3 profiles
- Weight calculator with project organization
- Advanced property filters
- Equivalent section finder
- Unit converter
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Steel Profiles is the steel section reference for structural engineers, fabricators, detailers and contractors. Look up nearly 10,000 sections from six international standards, check them to Eurocode 3 or AISC 360, and keep your take-offs in sync across iPhone, iPad and Mac. NEW IN 6.0 - Design checks to EN 1993-1-1 and AISC 360-22: classification, axial force, bending, shear, flexural and lateral-torsional buckling, beam-column interaction, with every formula shown - Section Builder: welded I and box sections, built-up channels, tees and angles, plated beams, with full properties - Bolts: metric M8 to M64 and imperial 1/2" to 1 1/2", with shear, tension, bearing and slip resistance - Steel grades: EN 10025, EN 10210/10219, ASTM, CSA, AS/NZS and JIS, with strengths by thickness - iCloud sync of favorites, projects and saved sections - Bulb flats (HP) to EN 10067 - PDF and CSV export, imperial fractions and smarter search (HEA 200, HEA200, W10x49) SECTION PROPERTIES - Complete geometric and structural properties with descriptions and a cross-section drawing - Filters by area, weight, moment of inertia, section moduli and radii of gyration - Favorites, Spotlight search and Siri TOOLS - Equivalent Finder: the closest section in another standard, optionally from the same shape family - Comparator: up to three sections side by side - Weight lists organized in projects and folders, exported to CSV - Unit converter for engineering units LIBRARIES USA: AISC 16 and AISC 16 SI (16th Edition), AISC 14 and AISC 14 SI (14th Edition) Canada: CISC 92 Europe: IPE, HE (HEA, HEB, HEM, HEAA), HD, HL, HP, IPN, UPE, UPN, angles, tees, bulb flats, hot-finished and cold-formed hollow sections United Kingdom: UB, UC, UBP, J, PFC, T, angles, hollow sections Australia / New Zealand: AS/NZS FREE AND PAID The free download includes dimensions for every library, the weight calculator, Section Builder, bolts, steel grades, the unit converter and iCloud sync. Unlock a library to see its full properties and run design checks on its sections, or get All Libraries for everything. Results are design aids for preliminary sizing and must be verified by a qualified engineer.
Screenshots
Verdict
The clearest difference is rating: Steel Profiles at 4.7 against Engineering Unit Converter's 4.3. Steel Profiles also leads on update cadence (every 10 days vs monthly) and ratings volume (331 vs 86). Engineering Unit Converter's advantage is review sentiment (82% vs 72%) and iOS requirement (11.2 vs 16.0). On price, ads, in-app purchases and monetization model 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
Both are free to download. Engineering Unit Converter sells 1 one-off in-app purchase and Steel Profiles sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Steel Profiles holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 86 and 331 respectively. Written reviews complicate that: 82% of Engineering Unit Converter's written reviews are positive against 72% of Steel Profiles's, so the app with the better star average is not the one people write more warmly about.
Engineering Unit Converter ships an update monthly, Steel Profiles every 10 days. Both last shipped on October 23, 2026.
| Parameter | Engineering Unit Converter | Steel Profiles |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (86 ratings) | 4.7 (331 ratings) — better |
| Positive reviews | 82.4% of reviews — better | 72.2% of reviews |
| Number of ratings | 86 | 331 — better |
| Update frequency | Monthly | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 11.2 — better | 16.0 |
| Further details — not scored | ||
| Size | 6 MB | 30 MB |
| Age rating | +4 | 4+ |
| Developer | Vector 254 LLC | Matteo Rossi |
Customer experience
Engineering Unit Converter
Steel Profiles
In-app purchases
Engineering Unit Converter
- Unlock App$0.99
Steel Profiles
- AS/NZS$2.99
- CISC92$2.99
- UK$2.99
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- EU$2.99
- AISC 14$2.99
- AISC 16$2.99
- All libraries$4.99




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