Comparison

Gas Engineer Software vs Fleetmaster

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

Head to head
About

Gas Engineer Software

This comprehensive app helps gas, oil, and plumbing professionals streamline their business operations. It allows for the creation of industry-specific certificates, issuance of quotes and invoices, and efficient job scheduling. Manage your team, customers, and finances from any device, anywhere, saving time and boosting revenue.

Highlights
  • Create industry certificates
  • Issue quotes and invoices
  • Schedule jobs with calendar
  • Manage team and customers
  • Automated service reminders
  • Offline access
Features
Read full description

Run your heating & plumbing business in one place and keep the diary full. Gas Engineer Software (GES) is the complete job management system built specifically for UK heating and plumbing businesses. Certificates, jobs, quotes, invoices, payments, on-site tools and automatic service reminders: One app, for every job, on your phone or back at the office. More than 7,000 UK businesses trust GES to run their jobs, backed by 14 years in the market. More than a basic gas certificate app, GES is a full system that runs the business issuing them, then turns this year's certificate into next year's booked work. GROW YOUR BUSINESS • Automatic service reminders keep loyal customers coming back year after year and book the repeat work for you • Businesses on GES see an average 37% revenue increase in their first year • Get paid faster with QR codes and payment links included with your invoices (powered by Crezco), with automatic chasing for late payers LOSE THE PAPERWORK • Quickly generate estimates, quotes, and invoices with templates or an AI draft, complete with statuses and payment tracking • Convert accepted quotes into invoices in one tap • UK gas, oil, and heat pump certificates, signed on-site and sent • Send appointment confirmations to customers in one click • Generate customer statements in seconds • GES saves each person on the team 6.6+ hours a week BUILT FOR HEATING & PLUMBING • The entire GES workflow is designed around heating & plumbing jobs, not bolted onto a generic trades system • Manage your jobs, your diary, and your team in one place. GES works perfectly for sole traders and larger operations that need to connect office staff with engineers • Sync payments, customers, and invoices to Xero, QuickBooks, or Sage • Pull readings from your Anton, Kane or TPI flue gas analyser straight into a certificate • Reference 2,300+ boiler manual PDFs in the app, along with AI Assist to get the answers you need faster • In-app calculators for gas rating, pipe sizing, installation volume, and tightness testing • UK-built, with UK support that actually knows heating via phone, chat, and email • Full offline access on the mobile apps, syncing when next online TRUSTED WITH WHAT MATTERS Your business data, certificates and property records are important, and the engine of your repeat work. GES has 14 years of experience keeping everything safe & adhering to data security best practices. EVERY CERTIFICATE, BUILT IN Gas: Homeowner Gas Safety Record · Landlord Gas Safety Record (CP12) · Gas Warning Notice · Gas Service Record · Gas Breakdown Record · Installation & Commissioning Checklist · Non-Domestic Gas Safety Record · Leisure Industry Gas Safety Record · LPG Gas Safety Record · Non-Domestic Testing & Purging Record · Non-Domestic Catering Record. Oil: CD/10 Installation Completion · CD/11 Servicing & Commissioning · CD/12 Landlord Oil Installation Check · CD/14 Oil Warning & Advice Notice · TI/133D Oil Storage & Tank Risk Report. Other: Air Source Heat Pump Service Record, Legionella Risk Assessment, Minor Electrical Works Record, Unvented Hot Water Cylinder EVERYTHING ELSE IN ONE PLACE Job sheets · quoting & invoicing · job scheduling with calendar · team management and roles · customer database (CRM) · automatic boiler service reminders · email and SMS reminders · web portal syncing · full offline access · gas rating, pipe sizing & installation volume calculators. REQUEST A DEMO If you want to see the app in action or get a better idea of how it works, book a demo with our team. We'll give you a thorough walkthrough & answer any questions. https://gasengineersoftware.co.uk/gas-engineer-software-demo/ QUESTIONS? Contact our customer support team at support@gasengineersoftware.co.uk or 0207 129 7058

About

Fleetmaster

Features
Read full description

Fleetmaster Vehicle Appraisal is a powerful inspection and defect reporting app designed for fleet operators, dealerships, leasing companies, and vehicle professionals. Streamline your vehicle checks, improve reporting accuracy, and maintain full visibility across your fleet — all from your mobile device. Key Features Comprehensive Vehicle Appraisals Carry out structured vehicle inspections with an intuitive, guided workflow. Instant Defect Logging Record issues, damage, and faults in real time with detailed notes. Photo & Evidence Capture Attach high-quality images directly to each defect for complete documentation. Professional Reports Generate clear, organised appraisal reports ready for internal review or client submission. Fleet Oversight Maintain accurate inspection records and track vehicle condition history over time. Fleetmaster helps you reduce risk, improve accountability, and standardise inspections across your organisation. Designed for efficiency. Built for professionals.

Screenshots

Gas Engineer Software4 screens
Fleetmaster4 screens

Verdict

The call

The clearest difference is in-app purchases: Fleetmaster at none against Gas Engineer Software's 1. On price, update cadence, ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Gas Engineer Software sells 1 one-off in-app purchase. Fleetmaster asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 22, 2026 and October 14, 2026 respectively.

Scorecard1 real difference · 7 level
Gas Engineer Software versus Fleetmaster: the parameters behind the verdict, then further details
ParameterGas Engineer SoftwareFleetmaster
PriceFreeFree
Positive reviews84.8% of reviews—
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size194 MB32 MB
Age rating4+17+
DeveloperSoftware Works for You LtdFLEETMASTER OPERATIONAL SUPPORT SERVICES LIMITED

Bugs and requests

Gas Engineer Software

Reported bugs

5 issues
  • Unexpected site shutdowns
  • Syncing is slow
  • Glitches in invoicing following a job report
  • App has become very slow due to latest update
  • Not usable at present time

Requested features

6 requests
  • Add multiple picture attachments
  • Select several photos at once
  • Flag jobs as finished
  • Oil forms for non-OFTEC registered companies
  • Calculate pipe work volume and purge volume
Show 1 more
  • Cheaper option for extra engineers

Fleetmaster

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Gas Engineer Software

One-time1
  • Single Engineer - 12 Months Subscription$19.00
None

Fleetmaster

No in-app purchases

Questions

Is Gas Engineer Software free?
Gas Engineer Software is free to download, with in-app purchases available.
Is Fleetmaster free?
Fleetmaster is free to download, with no in-app purchases.
Do Gas Engineer Software or Fleetmaster have ads?
Neither Gas Engineer Software nor Fleetmaster shows ads.
Which is updated more often, Gas Engineer Software or Fleetmaster?
Gas Engineer Software ships an update weekly, and Fleetmaster weekly. Most recently, Gas Engineer Software was updated on October 22, 2026 and Fleetmaster on October 14, 2026.

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