With the iOS agent, you can report app launch time, also known as "cold time" and "hot time." Note: Warm and prewarmed times are not reported.
View app launch time
Important
This feature is available for agent versions 7.4.0 and higher.
Your app launch time is reported with the AppLaunch/Cold
and AppLaunch/Hot
metrics, which can be viewed in the Metric Explorer in NR1.
Note: App Launch times are not reported when using Simulators or during debugging.