Reducing iOS app launch time

There’s no reliable way to detect first run , as the shared preferences way is not always safe, the user can delete the shared preferences data from the settings! a better way is to use the answers here Is there a unique Android device ID? to get the device’s unique ID and store it somewhere in your server, so whenever …

Launch time is calculated with two key metrics:

On the App start-up time page inside Android Vitals (on Google Play console) , you can see details about when your app starts slowly from cold, warm, and hot system states. These metrics are automatically calculated, without any development effort.

App launch can take place in one of three states, each affecting how long it takes for your app to become visible to the user: cold start, warm start, or hot start . In a cold start, your app starts from scratch. In the other states, the system needs to bring the running app from the background to the foreground.27 Oca 2022

The ideal loading time for a mobile app is about two seconds . However, according to a study by Akamai research, for every additional second that the app consumes, the conversion rate declines by 7%.

Three Months Before Launch: Lay the Groundwork