# GasCert: CP12 Gas Certificates — Safe Landlord & CP1 Records > Mobile app for Gas Safe engineers to create, sign, and deliver gas safety certificates. (iPhone/iPad app by iCertifi.) - Source: https://appshunter.io/ios/app/gascert-cp12-gas-certificates/id6746510893 (this page in markdown: same URL + `.md`) - Developer: [iCertifi](https://appshunter.io/developer/490104127) - Category: Business, Productivity - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 18.6 · 31 MB - Languages: American English - Released: 2025-11-27 - Data updated: 2026-08-23 - Monetization: subscription - User reviews in markdown: https://appshunter.io/ios/app/gascert-cp12-gas-certificates/id6746510893/reviews.md ## What is GasCert? Gas Safe certificates on your iPhone, iPad or Mac. Complete, sign and send on site, in minutes. GasCert lets Gas Safe and OFTEC registered engineers produce fully compliant records without going back to the van or the office. Customers sign on screen, every certificate is saved automatically, and you can email it before you leave the job. From iCertifi — building certification apps for UK trades since 2012. 26 CERTIFICATE TYPES Gas — domestic: • CP12 Landlord / Homeowner Gas Safety Record • CP1 Commissioning • CP9 and CP26 • Benchmark commissioning checklist • Domestic purge • Service checklist • Breakdown / Service Report • Gas Service and Maintenance • Gas Warning Notice • Leisure Industry Gas Safety Record Gas — commercial: • CP3, CP15, CP16, CP17 • CP42, CP43, CP44 • Gas Test and Purge (commercial, non-domestic) Oil — OFTEC: • CD/10, CD/11, CD/12, CD/14 • TI/133D oil storage tank risk assessment • Oil storage tank installation record Water and heating: • Legionella risk assessment • Unvented hot water storage (G3) • Central heating system cleanse AI BUILT IN Trained on gas industry data, not general knowledge. Check a regulation, decode a boiler fault code, or pull up a manual in seconds — a technical library, a senior engineer and a diagnostics tool in your pocket. GAS CALCULATORS Five calculators grouped by the job: gas rate at the meter, pipe sizing, heat loss, ventilation and flue positions. BUILT FOR THE JOB • Instant email delivery from site • On-device signatures for engineer and customer • Certificate templates — reuse for servicing, retests and repeat clients • Automatic company branding on every certificate • Unlimited certificates, no per-certificate charge • Quick Preview shows the record as you fill it in • iPad checklist sidebar for jumping between sections • AirPrint, Dropbox, or save locally to your filing cabinet • Full text of the Gas Safety (Installation and Use) Regulations 1998 UNIVERSAL APP Designed for iPhone, iPad and Mac with optimised layouts. A subscription is required to send and save certificates. Free unlimited 3 day trial. Subscriptions auto renew unless cancelled in your Apple Account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://icertifi.zendesk.com/hc/en-us/articles/201659279-iCertifi-s-Privacy-Policy-GDPR-Compliance ## Key features - Unlimited Gas Safe certificate generation - On-device digital signatures - AI-powered engineering support - Instant email delivery - Automatic company branding - Included Gas Safety Regulations ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | 1 Month Subscription | $24.99 | per month | | 1 Year Subscription | $149.00 | per year | | 1 Year Enterprise Subscription | $490.00 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | 10 AI Credits | $0.99 | one-time | | 100 AI Credits | $6.99 | one-time | | 500 AI Credits | $29.99 | one-time | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/gascert-cp12-gas-certificates/id6746510893/reviews.md ### 1/5 — App is downgraded *2026-03-25* It’s really disappointing that the previous app was shut down and we were forced to move to this new version. The CO₂ alarm “Installed: Yes/No” field doesn’t allow any input, leaving the column completely blank and stopping my work. The signature feature also doesn’t save at all. These issues have put my jobs on hold, and support has been unhelpful and quite rude in their responses. This needs urgent fixing. ## Frequently asked questions about GasCert ### What types of Gas Safe certificates can I create with GasCert? GasCert supports multiple certificate types including CP1, CP12 (Landlord Homeowner Gas Safety Record), Breakdown/Service Reports, Gas Warning Notices, Gas Service and Maintenance, Gas Test and Purge (Commercial Non Domestic), and Leisure Industry Gas Safety Records. ### Does GasCert have ads? No, GasCert does not contain advertisements. The application is ad-free. ### How does the AI feature in GasCert work? The integrated AI system is trained on gas industry data to provide instant regulation checks, decode boiler faults, and retrieve boiler manuals and technical information, acting as a pocket technical library and diagnostics tool. ### What are the subscription options for GasCert? GasCert offers a 1 Month Subscription for $24.99, a 1 Year Subscription for $149.00, and a 1 Year Enterprise Subscription for $490.00. All subscriptions include a 3-day free trial. ### Can customers sign certificates directly on the device? Yes, customers can sign certificates directly on the screen of the engineer's device, ensuring a secure and real-time captured signature. ### Is GasCert available on multiple devices? Yes, GasCert is a universal app designed for iPhone, iPad, and Mac, with optimized layouts for each platform. ### How often is GasCert updated? The latest version of GasCert is 1.3, and it was last updated on April 23, 2026. Updates typically occur to improve functionality and add new features. ### How do I cancel my GasCert subscription? Subscriptions auto-renew unless cancelled in your iTunes Account settings. You can manage your subscription preferences directly through your Apple device's account settings. ## Version history (last 5 releases) ### 2.0 — 2026-08-21 GasCert 2.0 — What's New GAS CERT 2.0 Twenty new certificates, a rebuilt CP12, and a redesigned way to fill everything in. NEW CERTIFICATES — 26 in total, up from 6 • Gas domestic: CP9, CP26, Benchmark commissioning, domestic purge, service checklist • Gas commercial: CP17, CP16, CP15, CP42, CP43, CP44, CP3 • Oil (OFTEC): CD/10, CD/11, CD/12, CD/14, TI/133D tank risk assessment, tank installation • Water & heating: Legionella risk assessment, unvented G3, system cleanse A REBUILT CP12 • Stays landscape, the way the paper record does, with the appliances as columns in one table • Now two pages instead of three APPLIANCES • Swipe to delete an appliance — previously you could add but never remove • Deleting one keeps the numbered answers with the right appliance • Duplicating a certificate now keeps every appliance's Make, Model and Flue type, and prints them in the order you entered them DATA ENTRY • Every certificate rebuilt as grouped cards, with completion ticks • iPad: a permanent checklist sidebar, so you can jump between sections • Quick Preview shows the certificate as you fill it in ALSO • Five gas calculators, grouped by the job: at the meter, sizing the installation, safety and compliance • Boiler fault code lookup • Redesigned subscription screen showing real prices for your country • Certificate menu on every screen: save, send, duplicate, mark as sent FIXES • Fixed a crash when opening any of the calculators • Fixed Quick Preview opening an empty sheet on iPad • Fixed the Gas Warning Notice camera saving nothing and leaving you stuck on the camera screen • Fixed subscribers being refused access to their own saved certificates • Removed the app sounds (the gas rate timer still beeps) ### 1.3 — 2026-04-23 Bug fix for Co alarm that couldn't be tapped on iPad Layout improvements Other bug fixes and improvements ### 1.2 — 2026-01-14 Fixes an issue where Gas Safe card details were hidden in Contractor Details ### 1.1 — 2025-11-29 - Adds option to Check gas appliance with AI against gas regulations - Free 20 AI tokens for new users - Improvements quick access to Settings and Subscription page ### 1.0 — 2025-11-27 No release notes. ## More apps by iCertifi - [iCertifi: Electrical Certs](https://appshunter.io/ios/app/icertifi-electrical-certs/id490104124) - [iCertifi PAT Edition](https://appshunter.io/ios/app/icertifi-pat-edition/id576018154) - [iCertifi Gas Edition](https://appshunter.io/ios/app/icertifi-gas-edition/id579911726) - [iCertifi Fire Edition](https://appshunter.io/ios/app/icertifi-fire-edition/id595143989) - [Fast Calc](https://appshunter.io/ios/app/fast-calc/id979637842) - [Symphony - Gimble Friendly Video Recorder](https://appshunter.io/ios/app/symphony-gimble-friendly-video-recorder/id1199064956) All apps by iCertifi: https://appshunter.io/developer/490104127 --- *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 2026-08-23.*