# Unit Converter For Engineers — Torque, HVAC, Hardness, Wire > Specialized unit converter for engineers with offline access and no ads. (iPhone/iPad app by Amanuel Abebaw.) - Source: https://appshunter.io/ios/app/unit-converter-for-engineers/id6752224915 (this page in markdown: same URL + `.md`) - Developer: [Amanuel Abebaw](https://appshunter.io/developer/1766393564) - Category: Utilities, Productivity - Price: Free with in-app purchases - Rating: 5.00/5 from 3 App Store ratings · 3 written reviews indexed - Age rating: 17+ - Requires: iOS 16.2 · 5 MB - Languages: English - Released: 2025-09-25 - Data updated: 2026-06-01 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/unit-converter-for-engineers/id6752224915/reviews.md ## What is Unit Converter For Engineers? Built for engineers who work with units most converters don’t have. No ads. No popups. No distractions. If you’ve ever opened PDFs, charts, or old handbooks to convert Rockwell hardness, wire gauge, HVAC airflow, radiation dose, water hardness, or torque units — this app replaces all of that. Units you usually can’t find in converter apps Material Hardness Rockwell (HRC, HRB, HRA), Vickers, Brinell, Knoop, Mohs, Shore Wire Gauge AWG, SWG, MCM, kcmil, diameter, cross-sectional area HVAC & Airflow CFM, ACH, BTU/h, tons of cooling, kW, airflow per area and per person Water Quality & Chemistry ppm, mg/L as CaCO₃, grains per gallon (US/UK), °dH, °fH, dKH, mmol/L, meq/L Radiation & Radioactivity Becquerel, Curie, Gray, rad Mechanical & Structural Torque, stress, density, pressure, moment of inertia (kg·m² ↔ slug·ft²) Built for real work environments • Works 100% offline in labs, plants, and job sites • Fast search and instant conversion • Scientific notation for precision work • Fraction input mode for field and construction use • Clean, engineer-friendly interface — no ads, ever This app replaces reference charts, calculators, handbooks, and repeated Google searches with one reliable tool in your pocket. Pricing 7-Day Free Trial $9.99/year full access $29.99 lifetime access Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://unitconvertx.github.io/docs/privacy.html ## Key features - Specialized engineering units - Offline functionality - Fast search and instant conversion - Fraction input mode - Ad-free interface - Scientific notation support ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Annual Subscription | $9.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Lifetime Access | $29.99 | one-time | ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/unit-converter-for-engineers/id6752224915/reviews.md ### 5/5 — Professional, clean, and complete! *2025-10-07* Unit ConvertX turned out to be exactly what I needed. The design is simple, modern, and professional — it feels like something made for real use, not just another flashy converter. The layout is clear and easy to navigate, so switching between units doesn’t take any effort. What I appreciate most is how complete it is. Every type of unit I’ve needed so far — mechanical, electrical, thermal, and more — is there and easy to find. Everything’s in one place, which saves me from using several different apps. It’s really good — I highly recommend it. ### 5/5 — The Most Comprehensive Engineering App Out There *2025-10-04* This is hands-down the most comprehensive engineering conversion app I’ve found. I was blown away when I discovered it even has Torque unit conversions - something most converter apps completely overlook! As an engineer/technician, having access to specialized units like torque, pressure, and other engineering-specific conversions in one place is invaluable. ConvertX covers everything I need without the clutter of unnecessary features. Fast, accurate, and clearly made by someone who understands what technical professionals actually need. Thank you for making this app - it’s become an essential tool in my daily work! Highly recommended for anyone in engineering, mechanics, or technical fields. ### 5/5 — Perfect for the kitchen *2025-10-04* Perfect for the Kitchen! As a chef, precise conversions are essential, and ConvertX is the best tool I’ve used. It handles recipes, batch scaling, and international units flawlessly. especially when adapting recipes from Europe to the American way. A must-have tool for anyone, Covers volume, weight, temperature—even specialized units I didn’t expect. Fast, accurate, and intuitive enough to use mid-service. Recommended by a friend, now it’s an essential tool in my kitchen. Highly recommend! ## Frequently asked questions about Unit Converter For Engineers ### Does Unit Converter For Engineers have ads? No, Unit Converter For Engineers is completely ad-free. The app is designed with no ads, no popups, and no distractions to ensure a seamless user experience for engineers. ### What units can Unit Converter For Engineers convert? Unit Converter For Engineers supports a wide range of specialized units including material hardness (Rockwell, Vickers, Mohs), wire gauge (AWG, SWG), HVAC (CFM, BTU/h), water quality (ppm, mg/L), radiation (Becquerel, Curie), and mechanical properties (torque, stress). ### Can I use Unit Converter For Engineers offline? Yes, Unit Converter For Engineers works 100% offline. This makes it ideal for use in labs, plants, and job sites where internet connectivity may be unreliable or unavailable. ### What are the pricing options for Unit Converter For Engineers? Unit Converter For Engineers offers a 7-day free trial. After the trial, users can choose between an annual subscription for $9.99 or a lifetime access purchase for $29.99. ### How often is Unit Converter For Engineers updated? The latest version of Unit Converter For Engineers is 1.4, and it was last updated on February 9, 2026. Updates are released periodically to improve functionality and add new features. ### What devices is Unit Converter For Engineers available on? Unit Converter For Engineers is available on iPhone and iPad. It is designed to run on these Apple devices, providing a consistent experience across platforms. ### What is the age rating for Unit Converter For Engineers? Unit Converter For Engineers has an age rating of 17+. This is likely due to the technical nature of the content and the target audience of professional engineers. ### How does Unit Converter For Engineers compare to other converters? Unlike many standard converters, Unit Converter For Engineers includes highly specialized units crucial for engineering work, such as material hardness, specific wire gauges, and HVAC airflow metrics. Its ad-free, offline design also enhances usability in professional settings. ## Version history (last 5 releases) ### 1.5 — 2026-04-25 Added an Advanced Engineering Calculator ### 1.4 — 2026-02-09 Fixed a Bug for the Engineering tools and added Engineering calculater: • Thread pitch and clearance hole charts • Material properties tables • Pipe, tube, and wire size charts • Bolt torque and tap drill calculators • AWG ampacity reference • Added built-in engineering calculator for multi-step conversions. • Improved screenshot clarity and app presentation. • Performance and UI refinements. • Full iPad support with optimized layouts 8 New Engineering Calculators Structural & Mechanical: - Beam Calculator - deflection, moment, stress for 6 beam types - Spring Calculator - compression springs with Wahl correction - Stress/Strain Calculator - Hooke's Law, modulus Electrical: - Ohm's Law / Power - complete V, I, R, P solver Fluid & Thermal: - Pressure Drop - Darcy-Weisbach pipe flow - Heat Exchanger - LMTD and effectiveness methods Power Transmission: - Gear Ratio - simple pairs and multi-stage gear trains - Motor Sizing - torque, power, acceleration requirements ### 1.3 — 2026-02-09 Added Engineering Tools section with: • Thread pitch and clearance hole charts • Material properties tables • Pipe, tube, and wire size charts • Bolt torque and tap drill calculators • AWG ampacity reference • Added built-in engineering calculator for multi-step conversions. • Improved screenshot clarity and app presentation. • Performance and UI refinements. • Full iPad support with optimized layouts ### 1.2 — 2026-01-30 UI improvements ### 1.1 — 2026-01-27 Minor description changes ## More apps by Amanuel Abebaw - [aiNurses](https://appshunter.io/ios/app/ainurses/id6670503864) - [WHY – Speech & Language App](https://appshunter.io/ios/app/why-speech-and-language-app/id6758643730) - [Collapse: Math IQ Puzzle](https://appshunter.io/ios/app/collapse-math-iq-puzzle/id6767093244) All apps by Amanuel Abebaw: https://appshunter.io/developer/1766393564 ## Related topics [units converter for engineers](https://appshunter.io/ios/topics/units-converter-for-engineers) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*