Gas sizing App iphone need BETA TESTERS

Looking for 15-20 gas plumbers to beta test a new gas sizing app.

Because im not from the US/Canada I need testers who size gas pipe sizes on a regular basis , new project installers, if you have records of your previous gas sizing projects documented that would be even better, for speeding up the testing.
Please contact me if you would like to partake in this, state where you are from, what gas type you are mainly installing and how often you would size a gas runs

ill need your email address.

send info to me -

i would say it will start in approx 7 days....