There’s probably the same app available for you poor sods with non-Apple phones.
It’s called “Emergency+” and automatically generates your GPS co-ordinates and street address while giving you a choice of emergency service numbers which you can dial with one tap on the screen: 000, SES, Police. Also has a ‘Help’ page with other numbers such as Poison Information Centre.
By using your phone’s speaker setting you can read the numbers off to the service you have called.
I reckon it’s worth the memory space.
Best of all, it’s FREE!