Google Analytics introduces Postbacks: Inching towards a full service Marketing tool
Deepak Abbot

This is definitely a very powerful feature and will give sleepless nights to most app marketing tools. However I would like to add more features to the wish list that you have mentioned:

  1. Ability to pass custom events
  2. Ability to create deferred deeplinks
  3. Tracking non-Google/other app stores/APK installs