Comparison

Book it Fix it vs Flint

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

Head to head
About

Book it Fix it

This app connects homeowners with service providers to streamline tasks and create revenue opportunities. It aims to increase efficiency for users and boost earnings for providers.

Highlights
  • Streamline daily tasks
  • Create revenue opportunities
  • Connect homeowners and providers
  • Increase efficiency
  • Boost earnings
Features
Read full description

Welcome to Book it fix it, the ultimate solution for homeowners and service providers alike! In today’s fast-paced world, time is money, and efficiency is key. Our app is designed to streamline your workday while opening up exciting revenue opportunities. Read on to discover how Book it fix it can transform your daily routine and increase your earnings.

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 β€’ 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 β€’ 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 β€’ 1,000+ manufacturers' manuals with full-text search, so you land on the page instead of thumbing through ninety of them β€’ 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 β€’ Gas rate, with a built-in stopwatch, metric and imperial β€’ Tightness test with the let-by and stabilisation timers, and the permitted drop for your meter β€’ CO/COβ‚‚ ratio against the 0.004 limit β€’ Temperature rise (Ξ”T) and expansion vessel sizing β€’ Boiler age from the serial number, decoded from the maker's own scheme and showing its arithmetic so you can check it β€’ 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 β€’ 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 Β£3.99 per month Annual: 7 days free, then Β£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

Book it Fix it3 screens
Flint4 screens

Verdict

The call

The clearest difference is ads: Book it Fix it at none against Flint's shown. On price, review sentiment, update cadence and in-app purchases there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Book it Fix it sells 10 in-app purchases, starting at $119.99 per year and Flint sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 19, 2026 and October 31, 2026 respectively.

Scorecard1 real difference Β· 7 level
Book it Fix it versus Flint: the parameters behind the verdict, then further details
ParameterBook it Fix itFlint
PriceFreeFree
Positive reviews100.0% of reviews100.0% of reviews
Update frequencyEvery 4 daysEvery 4 days
AdsNo β€” betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod β€” better
Requires iOS14.0 β€” better15.5
Further details β€” not scored
Size105 MB81 MB
Age rating17+4+
Developerrichard NeighbourOnspec Software Ltd

Customer experience

Book it Fix it

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Flint

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

10 purchases

Book it Fix it

Subscriptions7
  • Category Subscription$119.991 Year
  • Category Subscription$149.991 Month
  • Category Subscription$199.001 Month
Show 4 more
  • Category Subscription$199.991 Month
  • Category Subscription$249.991 Year
  • Category Subscription$399.991 Year
  • Category Subscription$499.991 Year
One-time3
  • 1 Week Advertisement$10.00
  • 2 Week Advertisement$19.00
  • 4 Week Advertisement$29.00
2 purchases

Flint

Subscriptions2
  • Flint Pro$3.991 Month
  • Flint Pro$29.991 Year

Questions

Is Book it Fix it free?
Book it Fix it is free to download, with in-app purchases available.
Is Flint free?
Flint is free to download, with in-app purchases available.
Do Book it Fix it or Flint have ads?
Flint shows ads; Book it Fix it does not.
Which is updated more often, Book it Fix it or Flint?
Book it Fix it ships an update every 4 days, and Flint every 4 days. Most recently, Book it Fix it was updated on October 19, 2026 and Flint on October 31, 2026.

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