Comparison

GasPilot vs Flint

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GasPilot

Features
Read full description

GasPilot is a business management app built for UK gas engineers. Create gas safety certificates on site, manage customer records, track jobs, and send professional invoices and quotes from one app. GasPilot helps gas engineers stay organised, reduce paperwork, and keep important records in one place. With GasPilot you can: • Create gas safety certificates and service records • Manage jobs from booking through to completion • Store customer and property details • Capture job photos and customer signatures • Create and send quotes and invoices • Share professional PDFs by email • Schedule upcoming work and manage your day • Keep your team aligned if you work with engineers or subcontractors GasPilot is designed for engineers who need fast admin, professional documents, and a clearer view of every job. Whether you are a sole trader or run a small team, GasPilot keeps your gas work and business admin together in one place. GasPilot Pro unlocks all 7 gas form types, unlimited customers, invoices and quotes, smart scheduling, team management, renewal reminders and custom branding on your documents. — Subscription Plans — • GasPilot Pro Monthly — £20.00 per month. A 30-day free trial is included for first-time subscribers. • GasPilot Pro Annual — £179.99 per year (approximately £14.99 per month, save 25% vs monthly). Payment will be charged to your Apple ID account at confirmation of purchase. Your subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period at the price of the chosen plan. You can manage your subscription and turn off auto-renewal at any time after purchase in Settings → [your name] → Subscriptions on your iOS device. Any unused portion of a free trial period is forfeited when you purchase a subscription to the same plan. Terms of Use (EULA): https://gaspilotapp.com/terms Privacy Policy: https://gaspilotapp.com/privacy

About

Flint

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.

Highlights
  • 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.)
Features
Read full description

Flint is the onsite guide for UK gas engineers. The manufacturer's manual, the fault codes, the service figures and the fault-finding chart for 2,300+ domestic gas boilers, in your pocket and ready before you've unclipped the case. FIND IT FAST • 2,300+ gas boilers across 45 manufacturers, one page per boiler. Search by make and model, by the maker's own code, or by the GC number off the badge: Flint names the appliance from the official product register and checks the manual really covers your number • 60,000+ fault codes: what it means, the likely cause, and the parts that usually get changed. Every code traced to the manual it came from • 1,000+ manufacturers' manuals with full-text search, so you land on the page instead of thumbing through ninety of them • Service figures for 2,100+ models: combustion targets at max and min rate with the maker's tolerance band, gas pressures, service mode, gas valve settings, sensor tables. Every figure cites the manual page it came from, and every wiring table, service-mode procedure and combustion figure has been read back against that page FAULT-FINDING CHARTS Older boilers have no fault codes; the manual gives a flowchart. Flint walks it with you, one box at a time: the question, Yes or No, the next box, into the LED table where the chart hands over, and on to the section it sends you to. 1,100+ boilers, with the manual page always one tap away. ASK FLINT Type a question in plain English and get an answer built from that boiler's own manual, with the page cited so you can check it. It reads the manual faster than you can. It doesn't decide, it doesn't sign anything off, and it won't go past what the manufacturer printed. You're the engineer. Flint just fetches. TOOLS • Gas rate, with a built-in stopwatch, metric and imperial • Tightness test with the let-by and stabilisation timers, and the permitted drop for your meter • CO/CO₂ ratio against the 0.004 limit • Temperature rise (ΔT) and expansion vessel sizing • Boiler age from the serial number, decoded from the maker's own scheme and showing its arithmetic so you can check it • Unsafe situations: tap through what you've found and get the IGEM/G/11 classification, ID, AR or NCS, with the action that goes with it. A paraphrased summary written for speed on site, not the standard itself, and no substitute for your judgement • Every manufacturer's UK technical helpline, tap to call BUILT FOR THE VAN, NOT THE OFFICE Dark, glare-friendly screen. Big, tappable controls. Made for standing at the boiler, not sitting at a desk. WHO IT'S FOR Gas Safe registered engineers, heating and plumbing engineers, and apprentices who want the manual and the fault code without the faff. SUBSCRIPTION One subscription, everything above included. New subscribers get the first 7 days free. Monthly: 7 days free, then £3.99 per month Annual: 7 days free, then £29.99 per year Payment is charged to your Apple Account at confirmation of purchase, or at the end of the free trial. Subscriptions renew automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the current period. Manage your subscription and turn off auto-renewal in your Apple Account settings after purchase. Terms of Use: https://flintfix.com/terms.html Privacy Policy: https://flintfix.com/privacy.html Flint is a product of OnSpec Software Ltd.

Screenshots

GasPilot4 screens
Flint4 screens

Verdict

The call

The clearest difference is ads: GasPilot at none against Flint's shown. On update cadence, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

UpkeepUpdate frequency

GasPilot ships an update every 3 days, Flint every 4 days. The most recent releases landed on October 8, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 7 level
GasPilot versus Flint: the parameters behind the verdict, then further details
ParameterGasPilotFlint
PriceFree — better—
Positive reviews—100.0% of reviews
Update frequencyEvery 3 days — betterEvery 4 days
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.1 — better15.5
Further details — not scored
Size58 MB81 MB
Age rating17+4+
DeveloperMohammed KhanOnspec Software

In-app purchases

None

GasPilot

No in-app purchases

None

Flint

No in-app purchases

Questions

Is GasPilot free?
GasPilot is free to download, with no in-app purchases.
Is Flint free?
Pricing for Flint is not currently listed on the App Store.
Do GasPilot or Flint have ads?
Flint shows ads; GasPilot does not.
Which is updated more often, GasPilot or Flint?
GasPilot ships an update every 3 days, and Flint every 4 days. Most recently, GasPilot was updated on October 8, 2026 and Flint on October 25, 2026.

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