In the Exact-Day Retention metric view, you are using D0 values. Could you please clarify what D0 specifically represents? Is it the day after opening the game the first time (often referred to as D1 in some other services), or does it refer to a different time point?

Hey, D0 refers to the same day as the app was first opened. For example, for retention, the first app open is considered the "install", but doesn't count as D0 retention yet, but if the user opens the app again on the same day, it's counted as a D0 login (and thus, retention).

Thanks for clarifying this!