Here you can   download   various    analytic services   such as Google Analytics, Braze (formerly Appboy) and adjust your data to learn more about how your app is used. 

To integrate Google Analytics, you only need your Google Analytics ID. Activate the option individually via platform (iOS, Android, Kindle) and enter the Google Analytics ID. Save the changes and then re-build the app so that the changes take effect in the app.

In order to adapt your tracking to your needs, it is useful to edit the tracking file and provide it with the app. 

Sample view for iOS: