# BoilerFix AI — Gas engineer's pro toolkit

> Gas engineer's pro toolkit (iPhone/iPad app by Stephen Bird.)

- Source: https://appshunter.io/ios/app/boilerfix-ai/id6765623181 (this page in markdown: same URL + `.md`)
- Developer: [Stephen Bird](https://appshunter.io/developer/1896013981)
- Category: Business, Utilities
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 15.0 · 7 MB
- Languages: American English
- Released: 2026-05-04
- Data updated: 2026-06-10
- User reviews in markdown: https://appshunter.io/ios/app/boilerfix-ai/id6765623181/reviews.md

## What is BoilerFix AI?

BoilerFix AI is the complete professional toolkit for UK Gas Safe registered heating engineers — 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 — 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 — over 131 heating controls with full programming guides, wiring diagrams and troubleshooting for the most common controllers fitted in UK properties.

AI Diagnostic Assistant — describe a fault in plain language and get instant suggestions on likely causes and the correct diagnostic steps.

Boiler Passport — generate QR-linked boiler service histories that customers can scan to see complete records of every visit.

Customer Hub & Job Calendar — manage your customers, schedule jobs and track service history in one place.

CP12 Certificates — generate professional landlord gas safety certificates and email them directly to customers as PDFs.

Invoicing & Bookkeeping — create branded invoices, track payments and log expenses for your tax return. Built specifically for self-employed engineers.

Site Passport — for council and housing association engineers, scan QR stickers fixed to properties to see complete site history.

Cooker & Hob Installation Guide — full reference for safe installation in domestic and commercial settings.

Combustion Data Tool — log and reference flue gas analyser readings for service records.

Subscription tiers

Basic — Diagnostic tools, calculators, certificates and reference material. £3.99 per month.

Pro — Everything in Basic plus Customer Hub, Job Calendar, Invoicing, Bookkeeping and Boiler Passport. £5.99 per month.

7-day free trial. Cancel anytime in your iPhone Settings.

Built for life on the tools

Works offline once content is loaded — 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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| BoilerFix AI Pro | $5.99 | per month |
| BoilerFix AI Basic | $3.99 | per month |



## Version history (last 2 releases)

### 1.0.1 — 2026-05-06

Initial release with Apple In-App Purchase subscriptions:

- Basic Monthly (£3.99/month) — fault codes, controls database, gas calculators, certificates and reference tools
- Pro Monthly (£5.99/month) — everything in Basic plus job calendar, customer hub, invoicing and Boiler Passport

Both subscriptions include a 7-day free trial.

Bug fixes and stability improvements.

### 1.0 — 2026-05-04

No release notes.

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*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 2026-06-10.*