QuickGasCerts vs BoilerFix AI
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
QuickGasCerts
This app streamlines the creation and management of Gas Safety Certificates for gas engineers. It offers a user-friendly interface to simplify administrative tasks.
- Create Gas Safety Certificates
- Manage Certificates
- Easy-to-use interface
- Mobile convenience
Read full descriptionHide full description
Quick Gas Certs is a powerful, easy-to-use mobile app designed to simplify the way gas engineers create and manage Gas Safety Certificates. Terms of Use: https://quickgascerts.blogspot.com/2025/07/terms-of-use.html Privacy Policy: https://sites.google.com/view/quickgascerts/privacy-policy
BoilerFix AI
A comprehensive mobile toolkit designed for UK Gas Safe registered heating engineers. It consolidates fault code databases, control guides, AI diagnostics, customer management, and administrative tools into a single, offline-capable application.
- Fault Code Database (12 manufacturers)
- AI Diagnostic Assistant
- Boiler Passport (QR-linked service history)
- Customer Hub & Job Calendar
- CP12 Certificates generation
- Invoicing & Bookkeeping
- Offline functionality
Read full descriptionHide full description
BoilerFix AI is the complete professional toolkit for UK Gas Safe registered heating engineers โ built by an engineer with 25 years on the tools, for engineers. Stop juggling multiple apps, manuals and websites on a job. BoilerFix AI puts everything you need in one place, even when you're working in a signal blackspot. What's included Fault Code Database โ over 1,868 fault codes covering 12 major manufacturers including Worcester Bosch, Vaillant, Baxi, Ideal, Potterton, Glow-worm, Alpha, Ariston, Intergas, Viessmann, Main and Vokera. Search by code, browse by manufacturer, get clear diagnostic guidance. Controls Database โ over 131 heating controls with full programming guides, wiring diagrams and troubleshooting for the most common controllers fitted in UK properties. AI Diagnostic Assistant โ describe a fault in plain language and get instant suggestions on likely causes and the correct diagnostic steps. Boiler Passport โ generate QR-linked boiler service histories that customers can scan to see complete records of every visit. Customer Hub & Job Calendar โ manage your customers, schedule jobs and track service history in one place. CP12 Certificates โ generate professional landlord gas safety certificates and email them directly to customers as PDFs. Invoicing & Bookkeeping โ create branded invoices, track payments and log expenses for your tax return. Built specifically for self-employed engineers. Site Passport โ for council and housing association engineers, scan QR stickers fixed to properties to see complete site history. Cooker & Hob Installation Guide โ full reference for safe installation in domestic and commercial settings. Combustion Data Tool โ log and reference flue gas analyser readings for service records. Subscription tiers Basic โ Diagnostic tools, calculators, certificates and reference material. ยฃ3.99 per month. Pro โ Everything in Basic plus Customer Hub, Job Calendar, Invoicing, Bookkeeping and Boiler Passport. ยฃ5.99 per month. 7-day free trial. Cancel anytime in your iPhone Settings. Built for life on the tools Works offline once content is loaded โ essential when you're in a basement boiler room with no signal. Optimised for use with cold or wet hands. Clear large text. No ads. No data sold to third parties. Designed for UK Gas Safe registered heating engineers. Sign-up requires self-certification as a gas engineer. Privacy Policy: https://boilerfix-ai.co.uk/privacy-policy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Questions or feedback? Email boilerfixai@gmail.com
Screenshots
Verdict
The clearest difference is monetization model: QuickGasCerts at free with in-app purchases against BoilerFix AI's subscription. BoilerFix AI's advantage is update cadence (every 2 days vs every 3 weeks) and iOS requirement (15.0 vs 18.5). On price, review sentiment, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. QuickGasCerts sells 3 in-app purchases, starting at $19.99 per year and BoilerFix AI sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
QuickGasCerts ships an update every 3 weeks, BoilerFix AI every 2 days. The most recent releases landed on September 6, 2026 and September 17, 2026 respectively.
| Parameter | QuickGasCerts | BoilerFix AI |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Update frequency | Every 3 weeks | Every 2 days โ better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases โ better | Subscription |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.5 | 15.0 โ better |
| Further details โ not scored | ||
| Size | 18 MB | 7 MB |
| Age rating | 4+ | 12+ |
| Developer | Peter Smith | Stephen Bird |
Customer experience
QuickGasCerts
BoilerFix AI
In-app purchases
QuickGasCerts
- Quick Gas Certs$19.991 Year
- asdasd$39.991 Month
- Yearly subscription$19.99
BoilerFix AI
- BoilerFix AI Basic7 Days trial$3.991 Month
- BoilerFix AI Pro7 Days trial$5.991 Month







