With Gas-Trak Online (GTO), managing your F-Gas refrigerant usage, cylinder tracking and job scheduling has never been easier.

Looking for a system to manage your refrigerant and industrial gas cylinders? With Gas-Trak Online (GTO), managing your F-Gas refrigerant usage has never been easier. GTO is the ultimate management tool for tracking cylinders and managing jobs; the mobile app can be used conveniently on the go. Use the Management Web Portal to organise your field engineers and schedule jobs. Report on F-Gas usage, calculate CO2 equivalents and find insights into engineer utilisation and analysis of the work type split. Visit for full portal management details.

Main Features/Benefits:
Cylinder Management
- Tracking- efficiently track a fleet of cylinders across multiple engineers to save time and help to control your rental costs, all within GTO.
- Stock list- keep records of your entire cylinder fleet, rental costs and gas usage seamlessly.
- Collect and return any suppliers’ cylinders using the Track Cylinders technology.
- Quickly and accurately look up cylinder details from the largest, worldwide refrigerant supplier and wholesaler partner network.
- Rental tracking- allows for easy rotation of cylinder stock for reduced costs.
Information Storage and Job Management
- All the information you need at your fingertips- customer, site and equipment information on GTO to create jobs quickly and efficiently.
- Create, allocate and complete jobs whilst tracking gas usage by equipment, site and customer.
- Track gas usage on jobs right down to the equipment it was used on.
- Store information on active and completed jobs for streamlined data validation.
- GWP Calculator provides fast and accurate CO2 equivalents.

- Reduce the time spent and costs occurred in reporting.
- Generate efficient, accurate and compliant F-Gas reports.
- Free reporting- access and download F-Gas reports.
- Enhanced reporting*- access, download and customise F-Gas operator and contractor reports via the secure GTO web portal.
- Analyse engineer and customer performance via a personalised reporting dashboard*.

- All data is encrypted during transmission to ensure security and peace of mind.
- Manage engineer permissions to give you extra security*.

- Organise installations, service calls, leak testing and follow ups, retrofits and decommissioning jobs directly in the GTO app.
- Use the GTO app anywhere, it will synchronise offline data with the cloud once back online, enabling you to work in locations with low or no connectivity.
- Personalise your settings to fit your working environment.

*Enhanced service users only

This app should be used in conjunction with the Gas-Trak Online Portal for the best user experience. Please contact the GTO team for information on creating a GTO account. Our standard package is free to all users. For further information or a free trial or demo of our enhanced package, please contact
Our team are here to help! For any queries please visit our website: or contact

What’s New

Version 5.4.1031.4


Ratings and Reviews

Redwoodsteve ,


The scan facility within the Bottle Tracker doesn't work.


A-Gas Ltd
96.8 MB
Requires iOS 10.2 or later. Compatible with iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPad Air, iPad Air Wi-Fi + Cellular, iPad mini 2, iPad mini 2 Wi-Fi + Cellular, iPad Air 2, iPad Air 2 Wi-Fi + Cellular, iPad mini 3, iPad mini 3 Wi-Fi + Cellular, iPad mini 4, iPad mini 4 Wi-Fi + Cellular, 12.9-inch iPad Pro, 12.9-inch iPad Pro Wi-Fi + Cellular, 9.7-inch iPad Pro, 9.7-inch iPad Pro Wi-Fi + Cellular, iPad Wi-Fi (5th generation), iPad Wi-Fi + Cellular (5th generation), 12.9-inch iPad Pro (2nd generation), 12.9-inch iPad Pro Wi‑Fi + Cellular (2nd generation), 10.5-inch iPad Pro, 10.5-inch iPad Pro Wi‑Fi + Cellular, iPad (6th generation), iPad Wi-Fi + Cellular (6th generation), iPad Pro (11-inch), iPad Pro (11-inch), iPad Pro (12.9-inch) (3rd generation), iPad Pro (12.9-inch) (3rd generation) and iPod touch.
English, Dutch, French, German
Age Rating
Rated 4+
© 2016 A-Gas Ltd


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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