UP/1B Calculator Downloads & RevenueUP/1B Calculator · App Store
UP/1B Calculator is #3 in Business Paid in United Kingdom and charting in 1 of 30 countries we track.
Updated 11 Nov 2026 · rankings refresh through the day
25 Sep 2026Full timeline · 8 events
- 📈UP/1B Calculator new best rank in the overall chart: #31Top Paid · All Apps · GB
- 📈UP/1B Calculator new best rank in the overall chart: #35Top Paid · All Apps · GB
- 📈UP/1B Calculator hit #1Top Paid · Business · GB
- 📈UP/1B Calculator new best rank in the overall chart: #37Top Paid · All Apps · GB
- 📈UP/1B Calculator entered the top 100 in 2 chartsTop Paid · All Apps · GB · Top Grossing · Business · GB
- 🆕UP/1B Calculator first spotted by AppInsider#2 in Top Paid · Business · United Kingdom
- 📦UP/1B Calculator version 1.1.0- You can now do a password reset
- Added an address lookup, just start typing an address and it will give you a matching list to select from (requires internet for this to work).
- Improved Saving prompt
- New unique job reference numbering so references are unique always
- Delete any jobs from the previous job screen by pressing and holding
- Prompt to enter an address if you forget… more - 🆕UP/1B 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.
Business PaidUP/1B Calculator at a glance
AI summary written from our chart and store data, 2026-11-11. It can be wrong: check the numbers above.
A specialized calculation and documentation tool for Gas Safe registered engineers to perform IGEM/UP/1B Edition 4 tightness tests on gas pipework. The app is currently ranked #3 in the GB Business Paid charts, indicating strong niche demand despite having only six ratings.
Similar apps: Gas Safe Register, IGEM Calculator, Field Test
UP/1B Calculator on the App Store
App details
App privacy Measured
UP/1B Calculator’s App Store privacy label declares 0 data categories used to track you across other companies’ apps and websites, 1 linked to your identity and 0 collected anonymously.
As declared by the developer on the App Store — Apple requires every app to publish this label. We track changes over time.
Where UP/1B 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 | #3 |
Apps near UP/1B Calculator on the chart
Business Paid, around #3.
Ratings
App Store, worldwide.
Review momentum
ⓘ How we measure thisReview 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 UP/1B Calculator
From recent reviews.
About UP/1B Calculator
The app guides you through every stage of the tightness test procedure:
• Installation Volume Test (IVt) — calculates the correct test pressure and acceptable pressure drop for the installation size
• Let-By Test — checks for meter regulator let-by
• Tightness Test — records pressure readings and determines pass or fail
• LDF Check — guides leak detection fluid testing of all disturbed joints
• Purge — calculates purge volume for safe gas release
• PDF Record — generates a professional gas tightness test record ready to save or share
Designed specifically for natural gas, LPG and LPG/Air in accordance with IGEM/UP/1B Edition 4.
All test records are saved to your account and sync across devices.
For use by Gas Safe registered engineers only.
Latest updates
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