iOS Apps

Since starting on our iOS apps, we’ve seen over 100,000 downloads! All our apps work on both iPhones and iPads. Find out more from the links below.

Available on the App Store


Fault Finding, Testing & Multimeters – Now also on your Apple TV

You can now watch our fantastic Fault Finding, Testing & Multimeters DVD on your iPhone, iPad and Apple TV.

There are 21 Chapters showing you all about multimeters, how to carry out the electrical safety tests in full, how to test stats, fans, sensors and pumps, about diverter valves, expansion vessels and the sequence of operation. Learn at your own pace.

Suitable for new entrants, those moving from installing to repairs and existing breakdown engineers.

DVD Chapters:

  1. Testing Equipment
  2. Multimeter Settings
  3. Electrical Safety Tests
  4. Earth Continuity Test
  5. Short Circuit Test
  6. Resistance to Earth Test
  7. Polarity Test
  8. Fault Isolation Procedure
  9. Sequence of Operation
  10. Pumps
  11. Testing Switches
  12. Water Pressure Switches
  13. Flow Switches
  14. Air Pressure Switches
  15. Fans
  16. Stats & Sensors
  17. Diverter Valves
  18. Domestic Heat Exchangers
  19. Expansion Vessels
  20. Water Hammer
  21. Airing Cupboards


Toolkit Bundle

Toolkit 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