Comparison

BoilerFix AI vs TrainAR

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

The toolkit for Gas Safe registered engineers, built by a working Gas Safe engineer. BoilerFix AI puts the reference books, the paperwork and the business admin from your van into one app: boiler fault codes, service mode, calculators, gas and oil certificates, customers, invoices and bookkeeping. Open it once with a signal and the tools stay on your phone, so they work in the loft, the plant room or the cellar. DIAGNOSTICS AND REFERENCE - Boiler fault codes for the major UK manufacturers, with GC number lookup - Service mode reference: 1,700+ entries across 12 manufacturers, with combustion targets and manuals - Controls database: wiring, faults and installation guides for 140+ controls - Wiring diagrams: Y-plan, S-plan and combi, interactive and colour coded - Boiler manual search, spare parts lookup and manufacturer technical support numbers - Unsafe situations reference, Gas Safe technical bulletins, and regulations and standards - Cooker and hob installation guide CALCULATORS - Gas rate for imperial and metric meters - Heat loss to BS EN 12831 - Gas pipe sizing to BS 6891 - IV tightness test to IGEM/UP/1B Edition 4, with a pass/fail check - Radiator sizing at your flow temperature - Water quality testing to BS 7593 (pH, corrosion, inhibitor) CERTIFICATES AND RECORDS (25+) - Domestic: CP12 gas safety record, CP6 service record, warning notice, boiler commissioning, unvented hot water (G3), TMV commissioning, legionella risk assessment, fumes investigation report (CMDDA1) and job sheet - Commercial: CP14, CP15, CP16, CP17, CP42 and CP44, plus RAMS with pre-loaded commercial gas-work hazards - LPG: domestic, commercial, catering and mobile catering records - Oil (OFTEC): CD10, CD11, CD12 and CD14, plus TI/133D and TI/133ND tank risk assessments - Customer and site details come from your Customer Hub, so you do not retype them on every job RUN YOUR BUSINESS - Customer Hub: every customer's jobs, invoices, quotes and certificates in one place - Job calendar and service tracker with service reminders - Quotes and invoices with your own branding, sent as a PDF - Bookkeeping: profit and loss, invoices and expenses - Boiler Passport: register a boiler against a QR sticker, log every visit, and let the customer book their next service by scanning it - Quick links bar: pick the tools you use most and keep them one tap away YOUR DATA Jobs, customers, invoices and expenses sync securely to the cloud, so they are there on any device you sign in to. A copy stays on your phone so the app keeps working offline. TRY IT FREE Every new account gets a 7-day free trial. After that: - Basic, GBP 3.99 per month: diagnostics, calculators and domestic certificates - Pro, GBP 5.99 per month: everything in Basic plus the business tools, commercial, LPG and oil certificates, and the air source heat pump radiator check ABOUT THE NAME "AI" in BoilerFix AI refers to how the app was built: AI tools helped build and maintain the fault code database. The app itself does not include a chatbot or generate answers while you use it. Gas Safe registration belongs to individual engineers, not apps. BoilerFix AI is an independent tool and is not affiliated with or endorsed by Gas Safe Register, OFTEC or any boiler manufacturer. Always follow the manufacturer's instructions and current regulations. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your Apple ID account settings after purchase. Terms and privacy: https://boilerfix-ai.co.uk/terms Privacy policy: https://boilerfix-ai.co.uk/privacy-policy Support: boilerfixai@gmail.com

About

TrainAR

Features
Read full description

TrainAR turns your most experienced engineers into a mentor that every trainee can carry in their pocket. TrainAR is an AI-powered augmented reality training platform built for the trades. It captures the know-how of your best engineers and delivers it as live, hands-free, step-by-step guidance on the job, so trainees become confident, capable engineers far faster. EXPERIENCE TRAINAR THREE WAYS Mobile: Run the full experience on your phone alone, with no extra hardware. Start a guided session, talk naturally with the AI assistant, and get the right answer for the job in front of you. Hybrid: Pair your phone with lightweight AI glasses. Keep your hands on the job while exploded parts diagrams, manuals and guidance appear on your screen. Full AR: Get the complete on-glasses experience, with live guidance and information right in your line of sight. WHAT YOU CAN DO WITH TRAINAR - Follow live, AI-guided training sessions for real jobs - Ask by voice and get instant, document-grounded answers - Pull up exploded parts diagrams and appliance manuals on demand - Record sessions and review them later - Manage your tasks and track progress - Connect to the job management software you already use Whether you are onboarding an apprentice, upskilling an engineer into a new trade, or capturing the knowledge of a senior engineer before they retire, TrainAR helps you build a skilled workforce, faster. TrainAR works alongside a TrainAR account. Speak to our team at trainar.ai to get set up.

Screenshots

BoilerFix AI4 screens
TrainAR3 screens

Verdict

The call

The clearest difference is in-app purchases: TrainAR at none against BoilerFix AI's 2. On price, update cadence, ads and device support 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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. BoilerFix AI sells 2 in-app purchases, starting at $3.99 per month. TrainAR asks for nothing beyond the download.

UpkeepUpdate frequency

BoilerFix AI ships an update every 3 months, TrainAR every 4 months. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

Scorecard1 real difference ยท 7 level
BoilerFix AI versus TrainAR: the parameters behind the verdict, then further details
ParameterBoilerFix AITrainAR
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyEvery 3 months โ€” betterEvery 4 months
AdsNoNo
In-app purchasesYesNo โ€” better
MonetizationSubscriptionโ€”
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.0 โ€” better16.0
Further details โ€” not scored
Size7 MB126 MB
Age rating12+4+
DeveloperStephen BirdTrainAR Limited

In-app purchases

2 purchases

BoilerFix AI

Subscriptions2
  • BoilerFix AI Basic7 Days trial$3.991 Month
  • BoilerFix AI Pro7 Days trial$5.991 Month
None

TrainAR

No in-app purchases

Questions

Is BoilerFix AI free?
BoilerFix AI is free to download, with in-app purchases available.
Is TrainAR free?
TrainAR is free to download, with no in-app purchases.
Do BoilerFix AI or TrainAR have ads?
Neither BoilerFix AI nor TrainAR shows ads.
Which is updated more often, BoilerFix AI or TrainAR?
BoilerFix AI ships an update every 3 months, and TrainAR every 4 months. Most recently, BoilerFix AI was updated on October 29, 2026 and TrainAR on October 28, 2026.

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