The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From Olivier Mogenot:
This application, named after the character "Huggy Bear" from Starsky & Hutch, allows gas professionals (utilities, gas installers, engineering services, etc.) to check and compute the various parameters of a gas installation: gas pipe types list and their diameters, conversion of gas pressure related to gas flow and gas type (Renouard formula), computation of the needed gas pipe diameter for a gas installation (Renouard formula), computation of the resulting gas pressure and gas speed depending on the gas pipe diameter (Renouard formula).