What is an 'App Trigger'?
An App Trigger is an experience that you create to be launched anywhere in your app. We ask three questions when dealing with the App Trigger: What, Where, and Who. What means which experience you want to send to your user. Where is where in your app do you want to place the app trigger. Lastly who is the audience that you want to view the experience. For detailed information click on the link http://docs.elasticode.com/docs/moments.