This life-saving app is available for iPhone, iPad, Apple Watch and Apple TV, along with Android and Windows Phone handsets.

The app includes Adult, Child and Infant CPR tutorials, detailed instructions on how to use AEDs, and Maori and Simplified Chinese translations. You can also customise the emergency call number, useful when travelling overseas.

Windows Phone users can also have CPR instructions spoken to them by their handsets and pin shortcuts to the different CPR techniques on the home screen.

The app can be downloaded for free from the iTunes Store, the Google Play Store or WindowsPhone.com

(Our app works on devices running iOS 8 or higher, tvOS 9 or higher, Android 4 or higher, or Windows Phone 8 or higher.)