I would be interested in the answer as well. I've not implemented Firebase into any AppGameKit project yet but plan to for my next release. The help just says "Starts the Firebase analytics system and the tracking of
some automated events" which doesn't make it very clear. I'd assume the implementation would handle all automated events not just some but we have no way of knowing precisely how it is incorporated into AGK.
On a different topic, have you ever been able to use SMART BANNERS on Android in AppGameKit? Paul added commands for different banner sizes at one point but on Android I have been unable to get any of them to show up at all except the original 320x50 format. We should be able to call CreateAdvert(5, 0, 0, 0) and it should then stretch a banner across the width of the device with a height based on the device itself. It works fine on iOS but nothing on Android and I've tried numerous devices (tablets and phones). I wrote to Paul about it but never heard back.