# CoolTech Pro — Cold technician - HVAC Gas

> Cold technician - HVAC Gas (iPhone/iPad app by dorlice KERCKWEB.)

- Source: https://appshunter.io/ios/app/cooltech-pro/id1561496972 (this page in markdown: same URL + `.md`)
- Developer: [dorlice KERCKWEB](https://appshunter.io/developer/1107743053)
- Category: Productivity, Utilities
- Price: $1.99
- Age rating: 4+
- Requires: iOS 15.0 · 61 MB
- Languages: Arabic, English, French, German, Indonesian, Irish, Japanese, Portuguese, Russian, Spanish and 3 more
- Released: 2021-04-15
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/cooltech-pro/id1561496972/reviews.md

## What is CoolTech Pro?

GazApp is an application intended for air conditioning and heating professionals handling refrigerants.
it allows to know all the physico-chemical properties of gases.

Features of the GazApp application:


All you need to know about gases:
type (hfc, cfc, hfo ...) gwp, types of oils, molar mass, flammability ... and much more !!!


To protect yourself from the regulatory obligations of the environment code R543 art. 75/83 and the decree of February 29, 2016.

GazApp has a calculator, to find out the GWP of a refrigerant in order to determine its charge in tonnes of CO2 equivalent, essential criteria in the F-Gas regulations.

You can thus know the periodic leak detection frequencies, depending on the type of refrigerant and the load present in your installation.


Supported gas:

R717, R718, R744, R290, HFO 1234 yf, HFO 1234 ze, R454C, R454A, R454B, R450A, R513A, R32, R448A, R449A, R134a, R453A, R407C, R22, R407F, R1044A, R427A, R R452A, R438A, R417A, R422D, R422A, R434A, R404A, R507, R23.

The application is constantly evolving, by downloading the application now will help you build the application of tomorrow, and to thank you, you, future users of the 1st hour and true ambassadors who download this version, all the updates day will be completely free.


## Version history (last 5 releases)

### 3.1 — 2023-11-20

This new version offers additional tools, including conversion tools and help with sizing pipes outside of your work.
CoolthechPro is constantly researching to improve your daily life as a refrigeration and heating engineer

### 2.0 — 2023-10-25

This new version brings bug fixes and integrates a new design.
We are working on new tools for your daily life as a refrigerator, heating engineer and plumber, stay connected
Share your ideas on our social network page available in the info menu in your GazApp application.

### 1.2 — 2021-12-06

This update improves stability
the application now manages fahrenheit degrees
send your comments if you have ideas for improved GazApp
This application is yours !!

### 1.1 — 2021-11-09

Bug fixes and stability improvements

### 1.0 — 2021-04-15

No release notes.

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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 2026-05-19.*