Master Gas – Gas Engineers Certificate Management and Business App


Create your own stunning and professional gas safety certificates, invoices and job sheets. All from your Apple device.


Appointment Diary
Keep track of your customer appointments with a built-in diary with fast address lookup.
Customer Database
Keep track of all your customers in one place. Store all contact information, past job history and important reminders for each of your customers and landlords.
Get paid quickly with the built-in invoice tool. Create invoices, then print or email to the customer. No more waiting for payment, no more stamps, no more lost cheques.
Email any of the gas forms, invoices or reminder letters from the app to your customer. This means you get all the documents to your customer quickly, leaving no delays for payment making your cashflow a pleasure. You can even email the same documents to yourself with an “Always CC” setting in the app.

Print any of the gas forms, invoices, reminder letters or expense records from the app to an AirPrint printer.

Gas Certificates and Forms
You can create professional Landlord Gas Safety Records and Maintenance forms. Currently 6 to choose from with many more soon to be added.
Track Expenses
Keep track of your expenses on the go.  It will cut down on sorting receipts for theTax Return and your accountant will love it too.
Record Mileage
Log down your mileage as you go. At the end of the year you will need this for your accountant. It could save you a small fortune!
Dropbox Integration
We have integrated with Dropbox, so you can upload all your documents to dropbox and access these on your computer. This feature works well if you want to batch print on your office computer. 
You can add and change any of the lookup lists to suit your needs, add your own logo to the reports and certificates.
Dedicated Support Team
We have a dedicated support team waiting to answer your questions and help you when you need it.

Love MasterGas? Try it for Free!

Download the App from the AppStore and try for free. If you like what you see you can sign up for a 3 month, 6 month or 12 month  subscription.