# GasCert: Gas Certificate CP12 — Engineer Safety Records & CP1 > 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-gas-certificate-cp12/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 · 34 MB - Languages: American English - Released: 2025-11-27 - Data updated: 2026-10-22 - Monetization: subscription - User reviews in markdown: https://appshunter.io/ios/app/gascert-gas-certificate-cp12/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. 30 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 Heat pumps: • Air to water, ground source and air to air commissioning records • Heat pump commissioning and performance record 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 | ## Is GasCert safe? Not enough ratings yet to assess GasCert. ## Is GasCert legit? GasCert: Gas Certificate CP12 appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for GasCert is 75 out of 100 points across 7 verification signals from App Store and developer data. ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/gascert-gas-certificate-cp12/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) ### 3.0.3 — 2026-10-17 New: Diary Book your visits by day, week or month. Email your customer a confirmation from your business, and they can accept, decline or ask for another time with one tap. You see their answer on the visit. Tap Start certificate on the day and it opens with the client, address and tenant already filled in. Visits can also go into your iPhone calendar. Included with your subscription. New: Scan analyser Take a photo of your flue gas analyser and the readings go straight into the certificate, with Undo if you want to change anything. Improvements Certificate pages now always start just below the top bar. Fixes and improvements. ### 3.0.2 — 2026-10-12 New certificate designs: choose Standard or one of five designs in your own colour (Settings, Certificate design options). The landlord gas safety record fits on one page in the new designs. Every certificate now prints your business name, address and Gas Safe number from the start. 6 digit Gas Safe business numbers now save. ### 3.0.1 — 2026-09-29 • Automatic customer reminders are now more dependable, and keep working smoothly when you use GasCert on more than one device, such as an iPhone and an iPad. • Improvements and fixes. ### 3.0 — 2026-09-28 What's new in Gas Cert 3.0 • Automatic customer reminders (subscribers): switch on a reminder for any certificate and your customer gets an email from your business before it's due. Choose 14, 30, 45 or 60 days ahead in Settings. • Heat pump commissioning records: Air to Water, Ground Source and Air to Air, plus a Heat Pump Commissioning and Performance Record. • Client Hub: keep your landlords and agents with their properties in one place. New certificates fill in the client, property, tenant and access notes for you. • What's due: one list of every certificate coming up for renewal. • Tidier PDFs: your Gas Safe number and logo print on gas forms only, and readings print with their units. • Warning notices are never turned into Mint Books invoices. • A new "update available" screen shows what's new before you update. • Ready for iOS 27, plus fixes and improvements. ### 2.1 — 2026-09-01 - Invoicing without retyping. Link Mint Books and a finished certificate becomes a draft invoice with the customer's details already on it , you add the price and send. - Answer a question in one tap. Yes, No and N/A are now a single bar on every check — no more scrolling a list to record an answer. - Never miss a renewal. A new Due for Renewal screen lists the certificates coming up, grouped by landlord, with one tap to email each of them a reminder. ## Apps similar to GasCert | App | Rating | Price | Category | | --- | --- | --- | --- | | [QuickGasCerts](https://appshunter.io/ios/app/quickgascerts/id6748575124) | 5.0 (2) | Free | Business | | [GB Gas Onsite Guide](https://appshunter.io/ios/app/gb-gas-onsite-guide/id1537237630) | — | Free | Business | | [EasyGas Mobile](https://appshunter.io/ios/app/easygas-mobile/id455238210) | — | Free | Business | | [BoilerFix AI](https://appshunter.io/ios/app/boilerfix-ai/id6765623181) | — | Free | Business | | [Gas Engineer App](https://appshunter.io/ios/app/gas-engineer-app/id6760107629) | — | Free | Business | | [GB Gas Rate Calculator](https://appshunter.io/ios/app/gb-gas-rate-calculator/id597689171) | — | Free | Business | ## 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 & Emergency](https://appshunter.io/ios/app/icertifi-fire-and-emergency/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 2026-10-22.*