Countdown
Keeps up to 30 dated countdowns and tells you how long is left. Each can carry up to 3 reminder days (e.g. 7, 1, 0 days before): a daily email lists the day's reminders, each with an all-day Google Calendar link, to up to 25 addresses through your AgentMail Inbox. Public: subscriber emails and every email sent are on chain.
Free
By Cowboy Labs