This app was mentioned in 1 comment, with an average of 1.00 upvote
Well when I went looking there's this app:
https://play.google.com/store/apps/details?id=com.approutes.reminderapp&hl=en
Which is just completely ridiculous. I mean, the data they show that you can store should be shit you know about your partner. Doesn't really fit the bill at all. I'll look into what you suggest (embedding google spreadsheets into calendar events) but I'm not hopeful about it