Pro Gas Volume Calculator Downloads & RevenuePro Gas Volume Calculator · App Store
Pro Gas Volume Calculator is #11 in Business Paid in United Kingdom and charting in 1 of 30 countries we track.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperLiam Turner
CategoryBusiness
Price4.99 GBP
Released
Rating★ 5.0 (3)
Version2.0
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Pro Gas Volume Calculator update history & changes
Last change · 17 events since 5 May 2026Full timeline ↓💰Price drop💰Price rise✏️Description updated📦Updated to version 2.0🆕Its developer released another app: Pro Gas Ventilation✏️New iPad screenshots📦Updated to version 1.8📈Hit #1📈New best rank in the overall chart: #79🆕First spotted by AppInsider
Full timeline · 17 events
- 💰Pro Gas Volume Calculator: price drop5.99 GBP → 4.99 GBP · GB
- 💰Pro Gas Volume Calculator: price rise4.99 GBP → 5.99 GBP · GB
- ✏️Pro Gas Volume Calculator: description updated· GB
- ✏️Pro Gas Volume Calculator: app got bigger20 MB → 34 MB (+71%)
- 📦Pro Gas Volume Calculator updated to version 2.0**Version 2.0 – Major Update!**
We've introduced powerful new features to make gas calculations even easier for engineers on-site.
• **Metric Purge Guidance** – Automatically calculate recommended minimum meter finish readings.
• **Imperial Purge Guidance** – Calculate required test dial revolutions for 1 ft³ and 5 ft³ meters.
• **Live Purge Results** – Clear green/red indicators show whether the required purge volume has been reached.
• **Improved Job History** – Delete individual saved jobs or clear your entire job history.
• **Seasonal App Icons** – Automatic icon changes throughout the year.
• **Performance & Usability Improvements** – Further refinements for a smoother experience.
Thank you for using Pro Gas Volume Calculator!… more - 🆕Pro Gas Volume Calculator: its developer released another app: Pro Gas Ventilation
- ✏️Pro Gas Volume Calculator: new iPad screenshots· GB
- ✏️Pro Gas Volume Calculator: new screenshots4 screenshots (was 4) · GB
- 📦Pro Gas Volume Calculator updated to version 1.8What's New in This Version
iPhone Duo Support
- Added support for iPhone Duo, including folded and unfolded screen layouts.
- Improved display optimisation for dual-screen devices.
- Enhanced compatibility across different screen sizes.
Tightness Test Improvements
- Updated PASS/FAIL result handling for greater clarity.
- Added a safety advisory referencing IGEM/UP/1B Edition 4.
- Improved consistency between on-screen results and PDF reports.
PDF Report Improvements
- Improved report layout and presentation.
- Clearer tightness-test results and safety information.
General Improvements
- Minor interface refinements and stability improvements.
Thank you for choosing Pro Gas Volume Calculator. We're continually improving the app to make gas calculations quicker, easier and more efficient.… more - 📈Pro Gas Volume Calculator hit #1Top Paid · Business · GB
- 📈Pro Gas Volume Calculator new best rank in the overall chart: #79Top Paid · All Apps · GB
- 📈Pro Gas Volume Calculator entered the top 100Top Paid · All Apps · GB
- 🆕Pro Gas Volume Calculator first spotted by AppInsider#83 in Top Paid · All Apps · United Kingdom
- 📦Pro Gas Volume Calculator version 1.7• Connect to Pro Gas Engineer and send completed calculation reports directly to your account
• Improved PDF reports with a cleaner, more professional layout
• Colour-coded PASS and FAIL tightness test results
• New safety status indicators for tightness testing
• Improved report spacing and readability
• Improved purchase verification and app security
• General improvements and refinements… more - 🆕Pro Gas Volume Calculator: its developer released another app: Pro Gas Flue Distance
- 🆕Pro Gas Volume Calculator: its developer released another app: Pro Gas Pipe Sizer
- 🆕Pro Gas Volume Calculator released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
5.0 ★
3 ratings
Measured
Best rank now
#11
Business PaidMeasured
Pro Gas Volume Calculator at a glance
AI summary written from our chart and store data, 2026-11-09. It can be wrong: check the numbers above.
Pro Gas Volume Calculator is a paid utility for gas engineers that performs installation volume, purge, and tightness testing calculations aligned with IGEM/UP/1B workflows. The app ranks #5 in the UK Business Paid category and #169 in All Apps Paid, indicating strong niche traction despite having only three user ratings.
Similar apps: Gas Safe Register, PipeFlow Pro, Engineering Toolbox
Pro Gas Volume Calculator on the App Store
App details
App ID
6765892376
Publisher
Liam Turner
On the store since
May 2026
Under a year
Minimum OS
iOS 18.6+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
34 MB
Also listed in
Utilities
App privacy Measured
Pro Gas Volume Calculator declares it collects no data at all — the rarest and most private label on the App Store.
Declared label
Data Not Collected
As declared by the developer on the App Store — Apple requires every app to publish this label. We track changes over time.
Where Pro Gas Volume Calculator's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| United Kingdom | BusinessPaid | #11 |
Apps near Pro Gas Volume Calculator on the chart
Business Paid, around #11.
Ratings
App Store, worldwide.
Rating
5.0 ★
3 ratings
Measured
Ratings
3
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
5.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Business apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about Pro Gas Volume Calculator
From recent reviews.
About Pro Gas Volume Calculator
**Pro Gas Volume Calculator – Professional Gas Engineering Tool**
Pro Gas Volume Calculator is a professional tool designed for gas engineers to accurately calculate installation volumes, purge requirements, gas rates and tightness testing results.
Built with IGEM/UP/1B workflows in mind, the app simplifies complex calculations into a fast, reliable and easy-to-use solution, reducing manual calculations and paperwork.
**Key Features**
• Installation volume calculator
• Live volume, purge and pressure-drop calculations
• Metric and imperial purge-volume guidance
• Recommended minimum metric meter finish readings
• Imperial meter dial revolution calculations
• Purge-volume reached/not reached indicators
• Tightness testing support
• Steel and copper pipe calculations
• Gas rate calculator with integrated timer
• Save, view and delete job history
• Export professional PDF reports
• Works offline for on-site use
**Built for Professionals**
Designed for Gas Safe registered engineers, installers and field technicians who need fast, accurate calculations on-site.
Whether calculating installation volumes, checking purge requirements or recording gas-rate measurements, Pro Gas Volume Calculator provides practical tools in one convenient app.
**Important Information**
This app is an engineering calculation aid and does not replace current standards, manufacturer instructions or professional judgement. Purge-volume indicators do not independently verify completion of a safe purging procedure.
This app is not affiliated with or endorsed by IGEM.
Pro Gas Volume Calculator is a professional tool designed for gas engineers to accurately calculate installation volumes, purge requirements, gas rates and tightness testing results.
Built with IGEM/UP/1B workflows in mind, the app simplifies complex calculations into a fast, reliable and easy-to-use solution, reducing manual calculations and paperwork.
**Key Features**
• Installation volume calculator
• Live volume, purge and pressure-drop calculations
• Metric and imperial purge-volume guidance
• Recommended minimum metric meter finish readings
• Imperial meter dial revolution calculations
• Purge-volume reached/not reached indicators
• Tightness testing support
• Steel and copper pipe calculations
• Gas rate calculator with integrated timer
• Save, view and delete job history
• Export professional PDF reports
• Works offline for on-site use
**Built for Professionals**
Designed for Gas Safe registered engineers, installers and field technicians who need fast, accurate calculations on-site.
Whether calculating installation volumes, checking purge requirements or recording gas-rate measurements, Pro Gas Volume Calculator provides practical tools in one convenient app.
**Important Information**
This app is an engineering calculation aid and does not replace current standards, manufacturer instructions or professional judgement. Purge-volume indicators do not independently verify completion of a safe purging procedure.
This app is not affiliated with or endorsed by IGEM.
Latest updates
2.0
**Version 2.0 – Major Update!**
We've introduced powerful new features to make gas calculations even easier for engineers on-site.
• **Metric Purge Guidance** – Automatically calculate recommended minimum meter finish readings.
• **Imperial Purge Guidance** – Calculate required test dial revolutions for 1 ft³ and 5 ft³ meters.
• **Live Purge Results** – Clear green/red indicators show whether the required purge volume has been reached.
• **Improved Job History** – Delete individual saved jobs or clear your entire job history.
• **Seasonal App Icons** – Automatic icon changes throughout the year.
• **Performance & Usability Improvements** – Further refinements for a smoother experience.
Thank you for using Pro Gas Volume Calculator!
1.8
What's New in This Version
iPhone Duo Support
- Added support for iPhone Duo, including folded and unfolded screen layouts.
- Improved display optimisation for dual-screen devices.
- Enhanced compatibility across different screen sizes.
Tightness Test Improvements
- Updated PASS/FAIL result handling for greater clarity.
- Added a safety advisory referencing IGEM/UP/1B Edition 4.
- Improved consistency between on-screen results and PDF reports.
PDF Report Improvements
- Improved report layout and presentation.
- Clearer tightness-test results and safety information.
General Improvements
- Minor interface refinements and stability improvements.
Thank you for choosing Pro Gas Volume Calculator. We're continually improving the app to make gas calculations quicker, easier and more efficient.
1.7
• Connect to Pro Gas Engineer and send completed calculation reports directly to your account
• Improved PDF reports with a cleaner, more professional layout
• Colour-coded PASS and FAIL tightness test results
• New safety status indicators for tightness testing
• Improved report spacing and readability
• Improved purchase verification and app security
• General improvements and refinements
Store changes
What Pro Gas Volume Calculator changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Price drop
5.99 GBP → 4.99 GBP
Price rise
4.99 GBP → 5.99 GBP
Description updated
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