Is there any way I can find out when I signed up for my original Todoist account (i.e. before my Premium membership)? I can't seem to see this under my account info.
unfortunately it's not possible to see the date of the account creation, but I will check if it's possible to look it up on our end.
You joined a LONG time ago :-) At least 2-3 years. We began to track join-date a lot later.