--- title: "EngiTools Pro - Reviews, Revenue and Downloads in Hong Kong SAR China | Apple App Store" description: "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 produ" --- # EngiTools Pro — Hong Kong SAR China ![EngiTools Pro App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/2f/03/1b/2f031bf6-9fea-53df-b097-8f7cf1e7846a/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png) **Developer:** [Kui Yan Marc YU](https://apptail.io/developer/kui-yan-marc-yu-OJxMxb) **Category:** Reference **Rating:** 5.0/5 (4 ratings) **Price:** Free **Bundle ID:** hk.kmutilitylab.engitoolspro **Store:** Apple App Store **Country:** Hong Kong SAR China **Version:** 1.0.8 (released 2026-06-22) **Original Release:** 2025-10-09 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/hk/app/app/id6753354185) **AppTail Page:** [https://apptail.io/app/engitools-pro-ykmy/hong-kong](https://apptail.io/app/engitools-pro-ykmy/hong-kong) ## EngiTools Pro Description 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 • Convert intuitively across a massive database of engineering units. • Supports scientific notation and smart formatting for high-precision results. • Includes categories for Length, Area, Volume, Mass, Pressure, Energy, Power, and more. HVAC & Psychrometrics • Psychrometric Chart Calculator: Instantly calculate Enthalpy, Dew Point, Humidity Ratio (w), Absolute Humidity, and Density by inputting Dry Bulb and RH/WB. • Fresh Air Requirement (ASHRAE 62.1-2022): Look up required outdoor air rates (L/s·person, cfm/ft²) across various room types instantly. Supports both SI and IP units. Piping & Flange Reference • Pipe Thickness & Weight: Quickly determine Outer/Inner Diameter, Wall Thickness, and Weight per meter/foot across different nominal sizes (DN/NPS) and schedules. • 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) • Accurate geometric data for Hexagon Head Bolts, Screws, Nuts, and Flat Washers. • 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? • Blazing Fast & Offline: No internet connection required. Get your data instantly, even in deep basements or remote sites. • Built for Professionals: Data is sourced from recognized industry standards (ASHRAE, BS, etc.). • Sleek UI: Optimized for both Light and Dark modes to reduce eye strain during long working hours. Auto-scales perfectly to your screen size. • 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.) ## EngiTools Pro Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/69/a1/d5/69a1d5a1-b139-9bf6-313e-b672f7a13ebb/1.png/1320x2868.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/d4/93/97/d49397a6-0948-7487-add5-003111594e06/2.png/1320x2868.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ca/f0/9a/caf09a27-99bf-9c4b-baad-5067924d1352/3.png/1320x2868.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/e7/8b/d0/e78bd0df-8c7d-7113-4dc6-b6d8fd7397bf/4.png/1320x2868.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/0a/71/5c/0a715c68-fe2f-c50e-bd91-1cbf3a3460bb/5.png/1320x2868.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/08/62/d9/0862d970-428b-66cf-3c05-4966bcf7da84/6.png/1320x2868.png) - [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/fe/0c/4b/fe0c4bff-8cde-9420-c107-8e7fa2439b4a/7.png/1320x2868.png) - [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/bb/eb/e6/bbebe643-58de-0e5c-8b1f-7ff047bbe289/8.png/1320x2868.png) - [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/6c/a4/2a/6ca42a96-7382-7032-7a8c-7cd27f827422/9.png/1320x2868.png) - [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/b5/c4/d9/b5c4d9a1-af1c-0d3c-c8e5-2be67bce8e06/10.png/1320x2868.png) ## EngiTools Pro Rating Breakdown in Hong Kong SAR China - 5 stars: 4 (100%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## EngiTools Pro In-App Purchases | Item | Price | |------|-------| | Upgrade to Premium | 38.00 H$ | ## Apps Similar to EngiTools Pro - [Hoffmann Group Blätterkatalog](https://apptail.io/app/hoffmann-group-blatterkatalog-uMzd/hong-kong) - [ABRAMS STEEL GUIDE®](https://apptail.io/app/abrams-steel-guide-Jmxe/hong-kong) - [bekids Princess Coloring Book](https://apptail.io/app/bekids-princess-coloring-book-irKe/hong-kong) - [Kono Summit 有聲書摘](https://apptail.io/app/kono-summit-SjSf/hong-kong) - [EngagePlusTeacher](https://apptail.io/app/engageplusteacher-XLej/hong-kong) - [Chemical Equation Balancer App](https://apptail.io/app/chemical-equation-balancer-app-Cuhj/hong-kong) - [香港駕駛學院](https://apptail.io/app/app-iqsj/hong-kong) - [Easy Sail Trim](https://apptail.io/app/easy-sail-trim-yZto/hong-kong) - [Guide2Inspections](https://apptail.io/app/guide2inspections-FLcp/hong-kong) - [Coatings Radar](https://apptail.io/app/coatings-radar-uCkq/hong-kong) ## EngiTools Pro Available In - [Hong Kong SAR China](https://apptail.io/app/engitools-pro-ykmy/hong-kong) - [Belgium](https://apptail.io/app/engitools-pro-ykmy/belgium) - [Bulgaria](https://apptail.io/app/engitools-pro-ykmy/bulgaria) - [Brazil](https://apptail.io/app/engitools-pro-ykmy/brazil) - [Switzerland](https://apptail.io/app/engitools-pro-ykmy/switzerland) - [Estonia](https://apptail.io/app/engitools-pro-ykmy/estonia) - [Greece](https://apptail.io/app/engitools-pro-ykmy/greece) - [Hungary](https://apptail.io/app/engitools-pro-ykmy/hungary) - [India](https://apptail.io/app/engitools-pro-ykmy/india) - [Italy](https://apptail.io/app/engitools-pro-ykmy/italy) - [Mexico](https://apptail.io/app/engitools-pro-ykmy/mexico) - [Peru](https://apptail.io/app/engitools-pro-ykmy/peru) - [Saudi Arabia](https://apptail.io/app/engitools-pro-ykmy/saudi-arabia) - [Austria](https://apptail.io/app/engitools-pro-ykmy/austria) - [Vietnam](https://apptail.io/app/engitools-pro-ykmy/vietnam) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*