# Engineering Cookbook > Mechanical design reference guide with engineering formulas and conversion factors. (iPhone/iPad app by Loren Cook Company.) - Source: https://appshunter.io/ios/app/engineering-cookbook/id376850735 (this page in markdown: same URL + `.md`) - Developer: [Loren Cook Company](https://appshunter.io/developer/376850738) - Category: Reference, Books - Price: Free - Rating: 4.50/5 from 6 App Store ratings · 11 written reviews indexed - Age rating: 4+ - Requires: iOS 6.0 · 34 MB - Languages: American English - Released: 2010-06-15 - Data updated: 2026-06-05 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/engineering-cookbook/id376850735/reviews.md ## What is Engineering Cookbook? The Engineering Cookbook is a convenient reference guide for mechanical designers. It provides "fingertip" access to frequently needed information, including: • Fan Basics • System Design • Duct Design • Motors & Drives • Heating & Refrigeration • Formulas & Conversion Factors ## Key features - Fan Basics - System Design - Duct Design - Motors & Drives - Heating & Refrigeration - Formulas & Conversion Factors ## Recent user reviews (10 of 11) All indexed reviews: https://appshunter.io/ios/app/engineering-cookbook/id376850735/reviews.md ### 2/5 — Landscape mode for IPad users *2021-09-14, version 3.0* Please enable the app to be able to rotate to landscape mode for IPad users ### 1/5 — Unable to open anything under the Duct design tab *2019-09-02, version 3.0* This works well for the first two tabs (fan basics; system design). But all other tabs just crash the app. Also tried on an ipad mini, and it’s the same issue. This is a shame because the information this app provides is useful and well detailed. ### 3/5 — Slim app is nice *2016-01-27, version 1.2* However the initial page of reviews focuses on a list which is not representative of all reviews. It instead focuses on the most positive. Is this bias Apple or the app mfr??? ### 5/5 — Nice *2013-02-11, version 1.2* Been using the Cookbook for 15 years; glad to have it now wherever I go. Same typo on page 44 and everything! ### 4/5 — Good on ya *2012-10-19, version 1.2* Decent app and best part it's free! ### 5/5 — Good app *2011-10-04, version 1.2* Good app for any mechanical engineer ### 5/5 — Great app! *2011-01-23, version 1.1* One of the more useful apps for the HVAC trade. I wish other manufacturers would do what Loren Cook has done. Makes my job easier. Thanks! ### 5/5 — Great App *2010-09-11, version 0* One less book I need to tote around. ### 5/5 — Really great app *2010-07-09, version 0* If you've ever used the Loren Cookbook before, this is the app for you. It's just like the handbook, only better because you can search. I was so happy when I saw this, not to mention it's free. ### 5/5 — Dawg *2010-06-21, version 0* Great app! ## Frequently asked questions about Engineering Cookbook ### What is Engineering Cookbook? Engineering Cookbook is a reference guide designed for mechanical designers. It provides quick access to frequently needed information on topics like fan basics, system design, duct design, motors, heating, refrigeration, and conversion factors. ### What kind of information is available in Engineering Cookbook? The app covers a range of mechanical engineering topics including Fan Basics, System Design, Duct Design, Motors & Drives, Heating & Refrigeration, and Formulas & Conversion Factors. ### Is Engineering Cookbook free to use? Yes, Engineering Cookbook is available for free. There are no in-app purchases or advertisements mentioned. ### What devices is Engineering Cookbook compatible with? Engineering Cookbook is supported on iPhone, iPad, and iPod devices. ### How often is Engineering Cookbook updated? The latest version, 3.0, was released on January 26, 2016. This indicates that updates may not be frequent. ### What is the age rating for Engineering Cookbook? Engineering Cookbook has an age rating of 4+, making it suitable for a wide audience. ### What is the user feedback on Engineering Cookbook? Engineering Cookbook has a high rating of 4.5 stars based on 6 user ratings, suggesting positive user sentiment. ### Who developed Engineering Cookbook? Engineering Cookbook was developed by Loren Cook Company. ## Version history (last 4 releases) ### 3.0 — 2016-01-26 This app has been updated by Apple to display the Apple Watch app icon. Updated content and new UI design! ### 1.2 — 2011-04-28 Added native iPad support! ### 1.1 — 2010-07-15 Bug fixes Increased speed when viewing pages ### 1.0 — 2010-06-15 No release notes. ## Apps similar to Engineering Cookbook | App | Rating | Price | Category | | --- | --- | --- | --- | | [Bell & Gossett - SystemSyzer](https://appshunter.io/ios/app/bell-and-gossett-systemsyzer/id491524114) | 3.0 (7) | Free | Reference | | [HVAC Technician Exam Prep 2026](https://appshunter.io/ios/app/hvac-technician-exam-prep-2026/id1528925311) | 4.9 (180) | Free | Reference | ## More apps by Loren Cook Company - [CookTools](https://appshunter.io/ios/app/cooktools/id1103368817) All apps by Loren Cook Company: https://appshunter.io/developer/376850738 ## Related topics [engineering cookbook](https://appshunter.io/ios/topics/engineering-cookbook) · [ductemissiontool](https://appshunter.io/ios/topics/ductemissiontool) · [engineering](https://appshunter.io/ios/topics/engineering) --- *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 2026-06-05.*