# Engineering Cookbook — user reviews

> 11 indexed App Store user reviews of Engineering Cookbook by Loren Cook Company, rated 4.50/5 from 6 ratings.

- Source: https://appshunter.io/ios/app/engineering-cookbook/id376850735/reviews
- App overview in markdown: https://appshunter.io/ios/app/engineering-cookbook/id376850735.md
- Rating breakdown: 5★ 5 · 4★ 0 · 3★ 0 · 2★ 1 · 1★ 0

## Most critical reviews (10 lowest-rated)

### 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.

### 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

### 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???

### 4/5 — Good on ya

*2012-10-19, version 1.2*

Decent app and best part it's free!

### 4/5 — Loren cookbook

*2010-06-19, version 0*

Just like the book that Loren Cook makes available to all of us. Hopefully this is just the first fan/airflow app from the manufacture and design communities in the hvac field. Definitely worth the price!

### 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!

### 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.

## Most praised reviews (1 highest-rated)

### 5/5 — Dawg

*2010-06-21, version 0*

Great app!

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*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.*