Using firebase to drip feed emails to app users

I haven't used it personally, but there's a Firebase Extension that does exactly what @szferi is describing:
https://firebase.google.com/products/extensions/auth-mailchimp-sync/

I usually use a firebase function to create a subscription in Mailchimp when the user signup so you can send emails from Mailchimp.

Hi mate, can you share your product that I may try it as a user and see the end result?

Is there more info available on MailChimp about integrating with firebase or vice versa ? Will check tomorrow anyways.

Thanks for sharing