---
title: "GasCert: CP12 Gas Certificates - Reviews, Revenue and Downloads in United Kingdom | Apple App Store"
description: "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"
---

# GasCert: CP12 Gas Certificates — United Kingdom
> Safe Landlord & CP1 Records

![GasCert App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/b7/da/f2/b7daf27e-7750-7407-1d28-e1fab68e206b/AppIcon-0-0-1x_U007epad-0-11-0-85-220.png/434x0w.png)

**Developer:** [iCertifi](https://apptail.io/developer/icertifi-JKSb) (United Kingdom)
**Category:** Business
**Rating:** 5.0/5 (1 ratings)
**Price:** Free
**Bundle ID:** com.1callelectrical.GasCert
**Store:** Apple App Store
**Country:** United Kingdom
**Version:** 3.0.2 (released 2026-10-12)
**Original Release:** 2025-11-27
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/gb/app/app/id6746510893)
**AppTail Page:** [https://apptail.io/app/gascert-cp12-gas-certificates-YhWx/united-kingdom](https://apptail.io/app/gascert-cp12-gas-certificates-YhWx/united-kingdom)

## GasCert Description
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:


Privacy Policy:


## GasCert Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/34/38/aa/3438aa48-dcb0-ec7f-20b6-4be6fe609b5a/iPhone_XS_Max_Copy_6.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/82/a4/f3/82a4f301-0371-998e-f5d0-eca386eb3e39/iPhone_XS_Max_Copy_9.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/93/31/1f/93311f99-baf5-b015-ed00-3cc18e48c042/iPhone_XS_Max_Copy_8.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/4f/6a/16/4f6a1625-5e2c-418c-bb53-b64751f4867b/iPhone_XS_Max_Copy_19.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/37/18/07/37180784-46d4-9053-21fb-090356f4cbb8/iPhone_XS_Max_Copy_20.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/59/dd/9e/59dd9e18-be67-1252-b1bd-e21b91f87d2a/iPhone_XS_Max_Copy_7.png/1242x2688.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ae/36/1b/ae361b7f-3421-35f2-fd69-16d01c07ca8c/iPhone_XS_Max_Copy_18.png/1242x2688.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/a9/fa/0e/a9fa0e40-6762-3265-cdb0-bd33664fdb3c/iPhone_XS_Max_Copy_17.png/1242x2688.png)

## GasCert Rating Breakdown in United Kingdom
- 5 stars: 1 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)

## GasCert Reviews in United Kingdom

### *---- "App is downgraded"
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.
-- OHM.CERTS, 2026-03-25

[View all GasCert reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)

## GasCert In-App Purchases
| Item | Price |
|------|-------|
| 1 Year Subscription | £149.00 |
| 1 Month Subscription | £24.99 |
| 10 AI Credits  | £0.99 |
| 1 Year Enterprise Subscription | £490.00 |
| 500 AI Credits  | £29.99 |
| 100 AI Credits | £6.99 |



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## GasCert Available In
- [United Kingdom](https://apptail.io/app/gascert-cp12-gas-certificates-YhWx/united-kingdom)
- [Australia](https://apptail.io/app/gascert-cp12-gas-certificates-YhWx/australia)
- [Belarus](https://apptail.io/app/gascert-cp12-gas-certificates-YhWx/belarus)
- [China](https://apptail.io/app/gascert-cp12-gas-certificates-YhWx/china)
- [Cyprus](https://apptail.io/app/gascert-cp12-gas-certificates-YhWx/cyprus)
- [Algeria](https://apptail.io/app/gascert-cp12-gas-certificates-YhWx/algeria)
- [Spain](https://apptail.io/app/gascert-cp12-gas-certificates-YhWx/spain)
- [Israel](https://apptail.io/app/gascert-cp12-gas-certificates-YhWx/israel)
- [Iceland](https://apptail.io/app/gascert-cp12-gas-certificates-YhWx/iceland)
- [South Korea](https://apptail.io/app/gascert-cp12-gas-certificates-YhWx/south-korea)
- [Mexico](https://apptail.io/app/gascert-cp12-gas-certificates-YhWx/mexico)
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- [Austria](https://apptail.io/app/gascert-cp12-gas-certificates-YhWx/austria)
- [United States](https://apptail.io/app/gascert-cp12-gas-certificates-YhWx/united-states)

---

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