Weekly cohorts / unbounded retention: why o they get worse over time?

Hi @MikkoKarvonen , thank you so much. So basically that means then that from the May 24 cohort, only 0.9% have churned (never returned again) until today, and the rest performed any other event? 

Would it be possible, that, among those ‘any events’, there are also end_session events? Which would not say much about the stickiness of our app. 

Would it be smarter to add a specific event to the return event, such as start_session ? or something of higher value, to have more significant results here? 

@Asja, we don’t track the end session events in our app, so I’m not familiar how they interact with this, but it sounds entirely feasible that they are included.

99,1% retention does sound like a utopia (if you had such figures and even half-decent way to monetize, you should really be talking to investors and not us!), so something like that is likely affecting these results. If you are using push messages and sending events about them to Amplitude, that could be one option.

I’d suggest one of two options:

1. Use some other event, as you suggested yourself. Your app should have some key activity that define whether the users are actually interacting with it as intended. Tracking that would give you more relevant results.
2. Under Govern → Events you can define which events are counted as Active (i.e. triggering any of them counts as being active user) and which event are Inactive (I’d drop at least things like Start Session and End Session there, as well as anything else that is not related to the user actively interacting with your app). After doing that definition, you could switch Any Event → Any Active Event in your chart and get more relevant results.

@MikkoKarvonen Thank you very much, that sounds very sensible. I will try the suggested and see how it changes. Have a great day, Asja