Flint: Boiler Onsite Guide

Flint: Boiler Onsite Guide

Boiler app for gas engineers

0 ratings
2 reviews
With Ads

Details

Released
August 5, 2026
Updated
October 17, 2026

Features

Flint: Boiler Onsite Guide screenshot #1 for iPhone
Flint: Boiler Onsite Guide screenshot #2 for iPhone
Flint: Boiler Onsite Guide screenshot #3 for iPhone
Flint: Boiler Onsite Guide screenshot #4 for iPhone
Flint: Boiler Onsite Guide screenshot #5 for iPhone
Flint: Boiler Onsite Guide screenshot #6 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

About

This app provides UK gas engineers with instant access to boiler manuals, fault codes, service figures, and fault-finding charts for thousands of domestic gas boilers. It features a search function, a Q&A tool powered by manual data, and essential calculation tools for onsite use.

✓2,300+ gas boilers from 45 manufacturers
✓60,000+ fault codes with manual references
✓1,000+ manufacturer manuals with full-text search
✓Service figures for over 2,100 models
✓Interactive fault-finding charts
✓AI-powered Q&A for manual queries
✓Onsite calculation tools (gas rate, CO/CO2, etc.)
Show original description
+1

What's New in Flint

1.4.4

October 17, 2026

Scan the badge. Tap the camera in the search box, point it at the boiler's data badge, and Flint reads the GC number and opens the boiler. No typing with gloves on. Read it to me. Service-mode procedures and fault-finding steps now have a speaker button. Put the phone down, keep both hands in the boiler, and Flint reads the steps out.

More

User reviews

Great app, time saver

Flint is a genuinely useful app for heating engineers. It saves a lot of time hunting through manuals when fault finding or looking for boiler-specific information on site.

What I particularly like is that Wes is clearly putting the work into developing it properly and listening to feedback from engineers using it in the real world. The coverage is already impressive and it keeps improving.

Definitely worth having on the phone if you work across different boiler manufacturers.
Show more

So handy

So I’ve been using this app quite daily, actually, as it gives me all the manuals in the palm of my hand, and if there’s something I don’t understand in it, I can get it to explain it for me using the AI and also can retrieve anything from the manual. Not quicker than I can find it. as well as having ordered normal standard stuff accessible right in front of you, it’s a real time saver.
Show more

FAQ

What boilers does Flint cover?

Flint covers over 2,300 domestic gas boilers from 45 different manufacturers. Each boiler has its own dedicated page with detailed information.

How does the 'Ask Flint' feature work?

You can type questions in plain English, and 'Ask Flint' will provide answers derived directly from the boiler's manual, citing the specific page for verification. It acts as a search tool for the manual content.

What kind of onsite tools are included in Flint?

Flint includes tools for calculating gas rate, performing tightness tests, analyzing CO/CO2 ratios, determining temperature rise (ΔT), sizing expansion vessels, and classifying unsafe situations.

Is Flint available on Android devices?

Based on the provided data, Flint is supported on iPhone, iPad, and iPod. Information regarding Android availability is not included.

How often is Flint updated?

The app was last updated on October 17, 2026, indicating a recent update. The frequency of future updates is not specified but suggests active development.

What is the subscription cost for Flint?

Flint offers a subscription with a 7-day free trial. After the trial, it costs £3.99 per month or £29.99 per year. Payment is charged to your Apple Account.

Does Flint have ads?

Yes, the application contains advertisements. This is indicated by the 'hasAds' flag being true in the provided data.

Can I cancel my Flint subscription?

Yes, subscription payments are charged to your Apple Account at the confirmation of purchase or end of the free trial. You can manage and cancel your subscription through your Apple Account settings.