GasCert Downloads & RevenueGasCert: Gas Certificate CP12 · App Store
Not in any tracked top chart right now.
Updated 9 Nov 2026 · rankings refresh through the day
DeveloperiCertifi
CategoryBusiness
PriceFree
Released
Rating★ 2.3 (3)
Version3.0.4
Age rating4+
First seen by us
23 Oct 2026
23 Oct 2026GasCert: Gas Certificate CP12 update history & changes
Last change · 6 events since 27 Nov 2025Full timeline ↓📈Dropped out of every chart we track📦Updated to version 3.0.4🆕First spotted by AppInsider📦Version 3.0.3🆕Its developer released another app: Mint Books
Full timeline · 6 events
- 📈GasCert: Gas Certificate CP12 dropped out of every chart we trackLast seen 4 Nov
- 📦GasCert: Gas Certificate CP12 updated to version 3.0.4MOVING FROM GAS EDITION
• Gas Cert now brings in the certificates you move from iCertifi Gas Edition. Tap Move My Certificates in Gas Edition and they appear in Gas Cert, ready to open, print and email.
• Moving while subscribed? Your subscription comes with you: Gas Cert is unlocked until your Gas Edition subscription ends. Remember to cancel it in Gas Edition so you are not charged twice.
IMPROVEMENTS
• Ready for iPhone Duo: works open or closed, turns sideways when open, and keeps fields clear of the fold.
• Settings redesigned to match iCertifi, with clear headings and icons.
• Diary: customer replies to booking emails now arrive as soon as you open the app.
FIXES
• Your email message, copy to address and logo now save in Settings.
• Calculators: the box you type in stays above the keyboard.
• Saved Certificates: certificates with no name show their type, and long titles no longer cut off mid word.
• Certificates with no title or reference now read Untitled or No reference.
• iPad: a TV or computer the iPad is mirrored to now shows the iPad screen properly.… more - 🆕GasCert: Gas Certificate CP12 first spotted by AppInsider#95 in Top Grossing · Business · United Kingdom (found via developer)
- 📦GasCert: Gas Certificate CP12 version 3.0.3New: 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.… more - 🆕GasCert: Gas Certificate CP12: its developer released another app: Mint Books
- 🆕GasCert: Gas Certificate CP12 released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
2.3 ★
3 ratings
Measured
GasCert: Gas Certificate CP12 on the App Store
App details
App ID
6746510893
Publisher
iCertifi
On the store since
Nov 2025
Under a year
Minimum OS
iOS 18.6+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
35 MB
Also listed in
Productivity
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
2.3 ★
3 ratings
Measured
Ratings
3
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
2.3★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
50/100
faster than 50% of Business apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About GasCert: Gas Certificate CP12
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
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
Latest updates
3.0.4
MOVING FROM GAS EDITION
• Gas Cert now brings in the certificates you move from iCertifi Gas Edition. Tap Move My Certificates in Gas Edition and they appear in Gas Cert, ready to open, print and email.
• Moving while subscribed? Your subscription comes with you: Gas Cert is unlocked until your Gas Edition subscription ends. Remember to cancel it in Gas Edition so you are not charged twice.
IMPROVEMENTS
• Ready for iPhone Duo: works open or closed, turns sideways when open, and keeps fields clear of the fold.
• Settings redesigned to match iCertifi, with clear headings and icons.
• Diary: customer replies to booking emails now arrive as soon as you open the app.
FIXES
• Your email message, copy to address and logo now save in Settings.
• Calculators: the box you type in stays above the keyboard.
• Saved Certificates: certificates with no name show their type, and long titles no longer cut off mid word.
• Certificates with no title or reference now read Untitled or No reference.
• iPad: a TV or computer the iPad is mirrored to now shows the iPad screen properly.
3.0.3
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.
