What app does impact notice?
I hear the phone can detect a car crash. Is it an app or is it already on the phone? Where and how to activate? Which app?
iPhone 13 Pro Max, iOS 16
Question marked as
All the information is available for you in the support article you viewed on the top of the page. It is built into phones starting with the iPhone 14. No app is needed. Here is the article again for you:
Use Crash Detection on iPhone or Apple Watch to call for help in an accident - Apple Support