Good. Keep pushing forward, of course. I read everything published on the site and I'm still not sure how does this work. The site sends emails with icl files attached?
Correct. It sends email reminders, with Add to calendar link(ics can be downloaded and added to favorite calendar on phone/device). The thing about Whatsapp etc having the ability - none of these make recurring reminder easy. Focus of these apps is either in monetization or selling ads. Of course a calendar app can be used but then calendar does not initiate nudges. The friction is in the initiation. Each party thinks other should initiate.
Hmm, I'm not sure I would be able to persuade + educate all of my friends to open the email and consume the calendar event each and every time. Consider NTFY or Pushover or similar, those are at least set once - reuse indefinitely. Plus, they would enable users to set a unique notification sound which would then always be something special in their life.
Noted. Definitely worth considering. Also as chats have taken over the world, people don't open email for long time, and so much junk in email. I did have that at the back on the mind. I just did not want to the app to become too noisy, with text/SMS pings. Will look into NTFY/Pushover. Thanks for the feedback.
Good luck. What you're building is definitely needed.