GB Gas Tightness Testing vs Gas Engineer Software
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GB Gas Tightness Testing
This app guides users through natural gas tightness testing procedures step-by-step. It includes timed tests with alarms and a visual manometer to display pressures. It also offers explanations of standing and working pressures for a comprehensive understanding.
- Step-by-step testing procedure
- Countdown timers with alarms
- Visual manometer for pressure display
- Explanations of standing and working pressure
- Natural Gas focus
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GBNG Tightness Test 2026 Carry out natural gas tightness testing with confidence using this step-by-step guide based on the latest IGEM/UP/1B Edition 4 (2026) guidance. Designed for gas engineers, apprentices and training centres, the app guides you through each stage of the testing procedure, helping you follow the correct sequence and understand the decisions required during testing. Features • Guided Let-by Test • Guided Stabilisation Test • Guided Tightness Test • Pipework-only retest guidance for existing installations • Standing Pressure assessment • Working Pressure assessment • Maximum Load Pressure assessment • Automatic installation volume calculator when required • Automatic 2026 permissible pressure loss calculations • Automatic pass/fail guidance • Stage-specific troubleshooting advice • Professional PDF test report • Built-in stopwatch and test timers • Clear manometer illustrations throughout • Designed for use on-site or in the classroom The app helps engineers understand what to do if a test fails, including guidance for: • Let-by failures • Stabilisation failures • Tightness test failures • Pressure regulator checks • Existing and new installations • Installation volume assessment where required Pressure readings are recorded during the test and included in a professional PDF report that can be saved, printed or shared. Whether you're an experienced gas engineer, an apprentice learning tightness testing or an assessor supporting candidates, GBNG Tightness Test 2026 provides a simple, logical and professional approach to one of the most important gas safety procedures. Developed by GB-GAS – Practical apps for gas engineers.
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.
- Create industry certificates
- Issue quotes and invoices
- Schedule jobs with calendar
- Manage team and customers
- Automated service reminders
- Offline access
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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
Screenshots
Verdict
The clearest difference is in-app purchases: GB Gas Tightness Testing at none against Gas Engineer Software's 1. GB Gas Tightness Testing also leads on review sentiment (100% vs 85%). Gas Engineer Software's advantage is update cadence (weekly vs every 12 months) and iOS requirement (15.0 vs 26.0). On price, 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
Both are free to download. Gas Engineer Software sells 1 one-off in-app purchase. GB Gas Tightness Testing asks for nothing beyond the download.
GB Gas Tightness Testing ships an update every 12 months, Gas Engineer Software weekly. Both last shipped on October 22, 2026.
| Parameter | GB Gas Tightness Testing | Gas Engineer Software |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews — better | 84.8% of reviews |
| Update frequency | Every 12 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 194 MB |
| Age rating | 4+ | 4+ |
| Developer | GB-GAS.CO.UK | Software Works for You Ltd |
Customer experience
GB Gas Tightness Testing
Gas Engineer Software
Bugs and requests
GB Gas Tightness Testing
Not enough reviews yet to summarise bugs or 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
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- Cheaper option for extra engineers
In-app purchases
GB Gas Tightness Testing
No in-app purchases
Gas Engineer Software
- Single Engineer - 12 Months Subscription$19.00
Questions
Is GB Gas Tightness Testing free?
Is Gas Engineer Software free?
Do GB Gas Tightness Testing or Gas Engineer Software have ads?
Which is updated more often, GB Gas Tightness Testing or Gas Engineer Software?
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