Acier MetalSpecs Pro vs EngiTools Pro
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Acier MetalSpecs Pro
This app provides comprehensive data on stainless steel, including weight and tolerance calculations, chemical compositions, and mechanical properties. It allows users to compare equivalent grades and share product requirements.
- Weight and tolerance calculator
- Chemical compositions
- Mechanical properties
- Equivalent grades comparison
- Share product requirements
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Introducing Metalspecs Pro - your ultimate stainless steel companion app! Unlock the power of stainless steel with a comprehensive tool that offers a weight and tolerance calculator, detailed chemical compositions, and mechanical properties at your fingertips. Seamlessly navigate between equivalent grades and effortlessly share your stainless steel product requirements with ease. Key Features: 1. Stainless Steel Weight and Tolerance Calculator: Quickly calculate the weight and tolerance of stainless steel materials for precise project planning. 2. Chemical Compositions: Access in-depth information on the chemical makeup of various stainless steel grades for informed decision-making. 3. Mechanical Properties: Dive into the mechanical characteristics of stainless steel to ensure optimal performance in your applications. 4. Equivalent Grades: Easily compare different Stainless Steel grades to find the perfect match for your needs. 5. Share Your Product Requirements: Streamline communication by sharing your Stainless Steel product requirements directly through the app. Empower yourself with Metalspecs Pro and elevate your stainless steel expertise today!
EngiTools Pro
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EngiTools Pro - The Ultimate Engineering Pocket Reference Stop wasting time searching through heavy handbooks, scattered PDFs, or unreliable websites. EngiTools Pro is the essential, all-in-one productivity app designed specifically for Mechanical, HVAC, Piping, and Civil Engineers. Whether you are on-site, in a meeting, or drafting in the office, get instant access to precise engineering data, dimensional references, and complex calculations right in your pocket. CORE FEATURES: Comprehensive Unit Converter β’ Convert intuitively across a massive database of engineering units. β’ Supports scientific notation and smart formatting for high-precision results. β’ Includes categories for Length, Area, Volume, Mass, Pressure, Energy, Power, and more. HVAC & Psychrometrics β’ Psychrometric Chart Calculator: Instantly calculate Enthalpy, Dew Point, Humidity Ratio (w), Absolute Humidity, and Density by inputting Dry Bulb and RH/WB. β’ Fresh Air Requirement (ASHRAE 62.1-2022): Look up required outdoor air rates (L/sΒ·person, cfm/ftΒ²) across various room types instantly. Supports both SI and IP units. Piping & Flange Reference β’ Pipe Thickness & Weight: Quickly determine Outer/Inner Diameter, Wall Thickness, and Weight per meter/foot across different nominal sizes (DN/NPS) and schedules. β’ Flange Dimensions (BS 1092-1): Comprehensive lookup for Weld-neck flanges (Raised face). Get exact PCD, bolt hole diameters, neck dimensions, and bolting requirements for various Pressure Ratings (PN). Fastener Dimensions (Bolt, Nut, Washer) β’ Accurate geometric data for Hexagon Head Bolts, Screws, Nuts, and Flat Washers. β’ Look up pitch, width across flats (s), width across corners (e), head height (k), and thread lengths based on metric sizes. WHY CHOOSE ENGITOOLS PRO? β’ Blazing Fast & Offline: No internet connection required. Get your data instantly, even in deep basements or remote sites. β’ Built for Professionals: Data is sourced from recognized industry standards (ASHRAE, BS, etc.). β’ Sleek UI: Optimized for both Light and Dark modes to reduce eye strain during long working hours. Auto-scales perfectly to your screen size. β’ No Interruptions: A clean, distraction-free environment tailored for engineering workflows. Upgrade your engineering toolkit today. Work smarter, calculate faster, and design with confidence using EngiTools Pro! (Note: EngiTools Pro is intended for general reference. Users should always verify calculations with official standards for critical engineering designs.)
Screenshots
Verdict
The clearest difference is in-app purchases: Acier MetalSpecs Pro at none against EngiTools Pro's 1. Acier MetalSpecs Pro also leads on ads (none vs shown) and update cadence (every 5 days vs fortnightly). EngiTools Pro's advantage is iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. EngiTools Pro sells 1 one-off in-app purchase. Acier MetalSpecs Pro asks for nothing beyond the download.
Acier MetalSpecs Pro ships an update every 5 days, EngiTools Pro fortnightly. The most recent releases landed on September 26, 2026 and October 15, 2026 respectively.
| Parameter | Acier MetalSpecs Pro | EngiTools Pro |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | β |
| Update frequency | Every 5 days β better | Fortnightly |
| Ads | No β better | Yes |
| In-app purchases | No β better | Yes |
| Monetization | Free | β |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 β better |
| Further details β not scored | ||
| Size | 7 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Hardik Modi | Kui Yan Marc YU |
In-app purchases
Acier MetalSpecs Pro
No in-app purchases
EngiTools Pro
- Upgrade to Premium$4.99



