iPhone Screenshots


The smartphone is the new toolbox.  Is yours loaded with the latest tools? 
CookTools is a suite of design tools in one convenient app 
Fan Law Calculator – Quickly determine new operating point from known conditions 
Sound Calculator – Compute LwA, dBA, Sones and NC from octave band data 
Duct Designer – Quickly calculate rectangular and round duct sizes that meet your system needs 
Area Calculator – Compute section properties for round and rectangular shapes 
Download today!

What’s New

Version 1.3

Unit Conversions and Psychrometric Views are available.

App Privacy

The developer, Loren Cook Company, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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