Comparison

Gas Engineer Software vs Gas App Uk

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

Streamline your heating and plumbing business with a comprehensive job management system. Generate quotes, invoices, and certificates, manage your diary and team, and automate service reminders to grow your revenue. Integrates with popular accounting software and offers offline access.

Highlights
  • Job and diary management
  • Quote and invoice generation
  • Certificate creation (gas, oil, heat pump)
  • Automatic service reminders
  • Payment processing integration
  • Offline access
  • Accounting software sync
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

Gas App Uk

This app provides office tools, community forums, and reference materials for gas engineers in the UK. It offers forms, invoices, quotations, a fault-finding forum, and a library of manuals and contacts. It also includes giveaways and discounts for users.

Highlights
  • Office tools (forms, invoices, quotations)
  • Fault finding and community forums
  • Library of manuals and contacts
  • Giveaways and discounts
  • Analyser and accounting integration
  • Premium subscription options
Read full description

Gas App Uk is an office software, reference and community tool for Gas Engineers in the UK. Gas App caters to exactly what you’d need on the job. Here’s some of what you can expect from Gas App… Office Tools A full suite of office tools consisting of forms, invoices and quotations, for domestic, commercial and oil engineers with analyser and accounting integration. Community Help A Fault Finding forum and Community Break Time forum bursting with your time served industry counterparts, giving and receiving advice, stories, recommendations and more, successfully, all year round. Reference Tools Library containing 1000s of relevant manuals, calculators, industry reference documents, and 100’s of contacts. Fun and Discounts There’s a monthly Horror Show giveaway, monthly Talent Show giveaway, discounts, bonuses, seasonal giveaways and more! With more features throughout for both free and premium users, a committed team, relevant content and industry leading partners, there’s something for everyone in the Heating and Plumbing game! EULA - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Gas Engineer Software4 screens
Gas App Uk4 screens

Verdict

The call

The clearest difference is monetization model: Gas Engineer Software at free against Gas App Uk's free with in-app purchases. On price, review sentiment, update cadence and ads 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 and Gas App Uk sells 1 in-app purchase, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Gas Engineer Software ships an update weekly, Gas App Uk every 4 days. The most recent releases landed on November 9, 2026 and November 11, 2026 respectively.

Scorecard1 real difference · 9 level
Gas Engineer Software versus Gas App Uk: the parameters behind the verdict, then further details
ParameterGas Engineer SoftwareGas App Uk
PriceFreeFree
Rating—3.0 (2 ratings) — better
Positive reviews84.8% of reviews — better77.2% of reviews
Number of ratings—2 — better
Update frequencyWeeklyEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.4
Further details — not scored
Size194 MB85 MB
Age rating4+12+
DeveloperSoftware Works for You LtdGas App Uk Limited

Customer experience

Gas Engineer Software

Written reviews66 reviews
Positive84.8%
Neutral3.0%
Negative12.1%

Gas App Uk

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews101 reviews
Positive77.2%
Neutral2.0%
Negative20.8%

User reviews

Gas Engineer Software

From App Store reviews

What we love

  • 👍 Easy to use
  • ⏱️ Time saver
  • 💼 Professional appearance
  • 📈 Scales with business growth
  • 🛠️ Reliable day-to-day

Room to improve

  • 💰 Price keeps increasing
  • 📉 No real improvement seen
  • 😠 Greed perceived
  • ⚠️ Unexpected maintenance
  • ✍️ Small font size

Gas App Uk

From 2 App Store ratings

What we love

  • 👍 Comprehensive information and resources
  • 🤝 Strong community support and interaction
  • 🚀 Efficient for business operations (invoicing, forms)
  • 💡 Innovative features (fault finding, boiler bot)
  • ✅ Easy to use and navigate

Room to improve

  • 💸 Increasing subscription prices
  • ⏳ Verification process is time-consuming
  • 📱 Limited PC functionality
  • 🤔 Some features are costly or unnecessary for some users
  • 📉 App has become less useful for some after changes

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

Gas App Uk

Reported bugs

3 issues
  • Verification not working
  • App crashes or freezes (implied by deletion/reinstallation)
  • Upgrade issues

Requested features

6 requests
  • Full PC functionality
  • Improve fault finding search (videos/comments per appliance)
  • Bulk upload/download of customer data
  • Add 'sent' button for invoices and checkbox for sent status
  • Checkbox for 'customer not present'
Show 1 more
  • Option to undo sending invoices

In-app purchases

1 purchases

Gas Engineer Software

One-time1
  • Single Engineer - 12 Months Subscription$19.00
1 purchases

Gas App Uk

Subscriptions1
  • Gas App Premium Subscription$14.991 Month

Questions

Is Gas Engineer Software free?
Gas Engineer Software is free to download, with in-app purchases available.
Is Gas App Uk free?
Gas App Uk is free to download, with in-app purchases available.
Do Gas Engineer Software or Gas App Uk have ads?
Neither Gas Engineer Software nor Gas App Uk shows ads.
Which is updated more often, Gas Engineer Software or Gas App Uk?
Gas Engineer Software ships an update weekly, and Gas App Uk every 4 days. Most recently, Gas Engineer Software was updated on November 9, 2026 and Gas App Uk on November 11, 2026.

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