---
title: "Gas Calculator (UP1B) - Reviews, Revenue and Downloads in United Kingdom | Apple App Store"
description: "The Gas Calculator (UP/1B) is a professional tool designed for Gas Safe Engineers. It simplifies calculations for installation volume, tightness testing, and purge volume based on IGEM/UP/1B Edition 4"
---

# Gas Calculator (UP1B) — United Kingdom
> Tightness & Purge Tool

![Gas Calculator (UP1B) App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/0a/c9/a1/0ac9a123-4630-fbcf-0cb5-af27d2a81bf6/AppIcon-0-0-1x_U007epad-0-1-85-220.png/400x400bb.png)

**Developer:** [Radoslaw Talaska](https://apptail.io/developer/radoslaw-talaska-zBcBbc) (United Kingdom)
**Category:** Utilities
**Rating:** 2.1/5 (7 ratings)
**Price:** £0.99
**Bundle ID:** app.emergent.up1bengineer6787d792
**Store:** Apple App Store
**Country:** United Kingdom
**Version:** 1.1.0 (released 2026-05-01)
**Original Release:** 2026-04-30

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/gb/app/app/id6764619662)
**AppTail Page:** [https://apptail.io/app/gas-calculator-up1b-ACyz/united-kingdom](https://apptail.io/app/gas-calculator-up1b-ACyz/united-kingdom)

## Gas Calculator (UP1B) Description
The Gas Calculator (UP/1B) is a professional tool designed for Gas Safe Engineers.
It simplifies calculations for installation volume, tightness testing, and purge volume based on IGEM/UP/1B Edition 4 standards.

Key Features:  
• IV Calculator – Quickly determine installation volume.
• Tightness Test – Check allowable pressure drop limits.
• Purge Volume – Automatically calculate PV = 1.5 × IV.
• History – Review and manage past calculations.
Ideal for engineers performing gas safety checks and installations.
Developed to improve accuracy, efficiency, and compliance with UK gas safety regulations.

## Gas Calculator (UP1B) Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/d1/6a/60/d16a60d2-fbf2-5b03-e992-020f063d5b09/WhatsApp_Image_2026-04-30_at_09.41.07__U00282_U0029.jpeg/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ca/20/77/ca20776e-3dfa-9860-e1d9-829102fda41a/IMG_1213.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/db/22/5f/db225f42-061d-69c6-4dbc-d469cacaa329/IMG_1212.png/1242x2688.png)

## Gas Calculator (UP1B) Rating Breakdown in United Kingdom
- 5 stars: 2 (29%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 5 (71%)

## Gas Calculator (UP1B) Reviews in United Kingdom

### *---- "Rubbish"
Downloaded it and none of the drop downs work. How can you Calculate IV volume when u can’t select meter or pipe sizes. Will be requesting refund
-- davie123098, 2026-08-26

### ***** "App"
Very good
-- Jamster 1249, 2026-04-30

[View all Gas Calculator (UP1B) reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)


## Gas Calculator (UP1B) Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | United Kingdom | Utilities | #16 |
| Top Paid | United Kingdom | Overall | #165 |

## Gas Calculator (UP1B) Discovered Keywords
- gas calculator
- up/1b calculator
- gas calculator up1b


## Gas Calculator (UP1B) Available In
- [United Kingdom](https://apptail.io/app/gas-calculator-up1b-ACyz/united-kingdom)
- [Canada](https://apptail.io/app/gas-calculator-up1b-ACyz/canada)
- [Germany](https://apptail.io/app/gas-calculator-up1b-ACyz/germany)
- [North Macedonia](https://apptail.io/app/gas-calculator-up1b-ACyz/north-macedonia)
- [United States](https://apptail.io/app/gas-calculator-up1b-ACyz/united-states)

---

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