iOS Apps

Since starting on our iOS apps, we’ve seen over 60,000 downloads! All our apps work on both iPhones and iPads and they’re optimised for the iPhone 7 and 7 Plus. Find out more from the links below.

Available on the App Store


All Paid iOS Apps

All Paid Apps Bundle

£11.99 1/3 discount!

Wiring & Controls for iOS

Wiring & Controls


Heatloss Calculator & Guide for iOS

Heatloss Calculator & Guide



Gas Rate Calculator & Guide for iOS

Gas Rate Calculator & Guide


Electrical Safety Tests for iOS

Electrical Safety Tests


Gas Pipe Sizing Calculator for iOS

Gas Pipe Sizing Calculator



Gas Ventilation Calculator for iOS

Gas Ventilation Calculator


Expansion Vessel Calculator & Guide for iOS

Expansion Vessel Calculator & Guide


Gas Ratio Calculator for iOS

Gas Ratio Calculator



Gas Rate Calculator Lite for iOS

Gas Rate Calculator Lite


Ohm's Law Calculator & Guide for iOS

Ohm’s Law Calculator & Guide