# Gas Certificate App — UK Gas Engineer Job Software > Digital gas safety certificates, invoices, and job management for UK gas engineers. (iPhone/iPad app by Trade Apps LTD.) - Source: https://appshunter.io/ios/app/gas-certificate-app/id1293890970 (this page in markdown: same URL + `.md`) - Developer: [Trade Apps LTD](https://appshunter.io/developer/1293890969) - Category: Utilities, Productivity - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 15.6 · 61 MB - Languages: American English - Released: 2017-10-09 - Data updated: 2026-08-22 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/gas-certificate-app/id1293890970/reviews.md ## What is Gas Certificate App? The Must-Have App for Gas Engineers – Create, Store & Send Certificates Instantly Tired of endless paperwork, lost certificates, and admin overload? Gas Certificate App is designed for Gas Safe registered engineers, helping you create and manage digital gas certificates, invoices, and job records in minutes, anytime, anywhere. Join over 10,000 gas engineers who have gone paperless and streamlined their workflow with the industry-leading gas certification app. Key Features Generate Every Industry-Standard Certificate. Access over 25 digital certificates across domestic, non-domestic, oil, and miscellaneous sectors, including: Landlord Gas Safety Record (CP12) Non-Domestic Gas Safety Record Legionella Risk Assessment Gas Breakdown & Service Reports Catering & Commercial Gas Safety Records Oil Firing Installation & Servicing Reports Work Offline – No Signal? No Problem! Complete and save certificates even without an internet connection. Your data syncs automatically when you're back online. Faster Invoicing & Estimates Build professional invoices, quotes, and estimates directly in the app Track payment statuses and keep your finances in check Stay Organised with an Integrated Calendar Schedule and manage jobs effortlessly Avoid missed inspections with built-in reminders Keep track of customer visits and repeat business Secure, Compliant & Cloud-Based. Bank-level encryption to keep your client data safe. Unlimited cloud storage for all your certificates, invoices, and job sheets. Auto-associates related documents (certificates, invoices, quotes, images) for easy access Branded Documentation. Make your business stand out—add your company logo and digital signature for a professional touch. Full Certificate List Domestic Gas Certificates Landlord Gas Safety Record (CP12) Gas Breakdown Record Gas Service Record Gas Warning Notice Legionella Risk Assessment Gas Boiler Commissioning Checklist Unvented Hot Water Cylinder Record Non-Domestic Gas Certificates Non-Domestic Gas Safety Record Commercial Gas Safety Record LPG Gas Safety Record Leisure Industry Gas Safety Record Catering Gas Safety Record CP15 Gas Testing & Purging Record Oil Certificates CD/10 Oil Firing Installation Report CD/11 Oil Firing Servicing Report CD/12 Landlord Oil Installation Check CD/14 Warning & Advice Notice CD/51 Commercial Oil Firing Service Report TI33D Domestic Oil Storage Tank Risk Assessment Miscellaneous Certificates Power Flush Certificate Job Sheet Caravan/Boat Safety Record Mobile Catering Vehicle Safety Record Installation/Commissioning/Decommissioning Record Air to Water Heat Pump Commissioning Checklist By using this app, you agree to Apple’s Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ For our Privacy Policy, visit: https://help.tradeapps.co.uk/en/article/privacy-policy-1rwkmw5 ## Key features - Generate industry-standard gas certificates - Create invoices and estimates - Offline certificate creation and saving - Integrated job scheduling and reminders - Secure cloud storage and data encryption - Branded documentation with company logo ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Yearly subscription | $199.99 | per year | | Monthly Subscription | $19.00 | per month | ## Recent user reviews (10 of 56) All indexed reviews: https://appshunter.io/ios/app/gas-certificate-app/id1293890970/reviews.md ### 5/5 — Brilliant App! *2026-06-24, version 4.9.2* I’ve been using gas certificate app now for 3 years since starting my own business and it’s been brilliant. Everything is all user friendly and easy to work round when doing all the gas certificates. It saves all the information what I need for every customer and not having to hold a load of paper copies on the van is very handy when it’s all stored on the app. My customers like that they get a yearly service reminder and emailed certificate on completion of every job. The customer service is very helpful when wanting to find out any information on the app from the team. Definitely recommend gas certificate app to any engineer in the industry! ### 5/5 — GREAT APP *2026-01-21, version 4.8.0* I know couldnt be without this app, customer support is great aswell ### 5/5 — Mr Thompson - Plumber SE1 *2025-12-24, version 4.8.0* Good app, great set up ### 1/5 — Trial *2025-11-30, version 4.7.7* Everyone raves about this app. Downloaded to try it. Nope. Can’t do anything without an error message. Add customer details? Error. Add certificate? Error. Subscribe? Error. Useless. Giving up trying. ### 5/5 — Great App *2025-11-19, version 4.7.7* I work as an admin for our gas company, the engineers find the app really helpful and, for me as the admin, it makes my job so much easier, especially when organising appointments. Getting the reminders to my email really helps me! Great app. ### 5/5 — Definitely recommend *2025-11-19, version 4.7.7* As an engineer coming from paper the app is saving me so much time and when I have had needed some guidance the customer service advisor really helped me. Definitely recommend ### 1/5 — NOT RELIABLE *2025-11-17, version 4.7.6* This app could be decent but theres to many issues to trust it on jobs. Certs sometimes just duplicate and syncing takes ages or just fails it would be quicker using paper certs then going back an forth as it take ages for anything to get fixed. Maybe it’ll get better but right now I can’t rely on it for my business. ### 2/5 — Full of bugs and errors messages. *2025-11-14, version 4.7.6* I thought I would try out this software as I currently use a well known Gas Engineer software. Unfortunately even after the app update to fix the bugs it’s still showing error messages etc. Possibly could be a good piece of software but not at present when trying to run a business. ### 1/5 — Needs improvement *2025-10-29, version 4.7.5* It does what it says on the tin but needs lots of improvement. Needs an asset save so you don’t have put in appliance details every time a new cert is made. Needs to save all info of an address with landlord details and any information of the appliances for that address. This very time consuming having to enter appliance details every time. ### 4/5 — “Trail expired” 100s notifications *2025-10-28, version 4.7.5* Wanted to try out the app to see if it would offer something my current CRM doesn’t. Sadly after setting up I got no word of a lie a notification every minute until I deleted the app saying “trail expired? Send us a message” Sure send one or two but one every single minute is excessive. Also the spelling mistake was enough to be off putting in the first instance but to then get all these notifications just really didn’t fill me with confidence moving forward. Maybe just a bug but left a bit of a sour taste. Will maybe check in later down the line as I can see the potential benefits. ## Frequently asked questions about Gas Certificate App ### What does the Gas Certificate App do? The Gas Certificate App is designed for Gas Safe registered engineers to create, store, and send digital gas certificates, invoices, and job records. It helps streamline administrative tasks, allowing engineers to go paperless and manage their workflow efficiently. ### What types of certificates can I generate? The app offers over 25 industry-standard digital certificates covering domestic, non-domestic, oil, and miscellaneous sectors. This includes popular certificates like the Landlord Gas Safety Record (CP12), Non-Domestic Gas Safety Record, Legionella Risk Assessment, and various service and breakdown reports. ### How much does the Gas Certificate App cost? The app is free to download and use, but it offers in-app purchases. This typically means there are premium features or a subscription model for full access to all functionalities and unlimited usage. ### Can I use the app without an internet connection? Yes, a key feature of the app is its offline functionality. You can complete and save certificates even when you don't have an internet signal. Your data will automatically sync to the cloud once you are back online. ### Who is the target audience for this app? This app is specifically designed for Gas Safe registered engineers in the UK. It aims to help them manage their jobs, create essential documentation, and improve their overall business operations by digitizing their processes. ## Version history (last 5 releases) ### 4.9.6 — 2026-08-22 We’ve squashed some pesky bugs, fine-tuned the mechanics ### 4.9.5 — 2026-08-11 We’ve squashed some pesky bugs, fine-tuned the mechanics ### 4.9.4 — 2026-08-03 We’ve squashed some pesky bugs, fine-tuned the mechanics ### 4.9.3 — 2026-07-06 We’ve squashed some pesky bugs, fine-tuned the mechanics ### 4.9.2 — 2026-05-25 We’ve squashed some pesky bugs, fine-tuned the mechanics ## Apps similar to Gas Certificate App | App | Rating | Price | Category | | --- | --- | --- | --- | | [NovoCheck](https://appshunter.io/ios/app/novocheck/id1215614772) | — | Free | Utilities | | [Gas Checker](https://appshunter.io/ios/app/gas-checker/id523576969) | 5.0 (1) | Free | Utilities | | [Radiator Calculator](https://appshunter.io/ios/app/radiator-calculator/id1445426217) | 4.8 (4) | $1.99 | Utilities | | [ESC Gas Flow Rate Calculator](https://appshunter.io/ios/app/esc-gas-flow-rate-calculator/id6468877081) | — | Free | Utilities | | [Gastite Sizing App](https://appshunter.io/ios/app/gastite-sizing-app/id1537998852) | — | Free | Utilities | | [Honeywell Home Wiring Guide](https://appshunter.io/ios/app/honeywell-home-wiring-guide/id1445695073) | — | Free | Utilities | ## More apps by Trade Apps LTD - [Electrical Certificate App](https://appshunter.io/ios/app/electrical-certificate-app/id1531731405) - [Plumbing Solder Shop](https://appshunter.io/ios/app/plumbing-solder-shop/id6451108752) All apps by Trade Apps LTD: https://appshunter.io/developer/1293890969 ## Related topics [gas certificate app](https://appshunter.io/ios/topics/gas-certificate-app) · [certificate app](https://appshunter.io/ios/topics/certificate-app) --- *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 2026-08-22.*