Progress Bar OSX - This is your life and it's ending ⏳ one minute at a time
Kippa - From inside Teams, Kippa reminds you or your team-members about events to keep the team running like clockwork.Kippa's five-minute learning curve enables you to quickly set personal and shared reminders, (@mentions), or to Private Channels.
Next Deadline - Slick Deadline Manager
Reminder - A better way to keep track of your reminders 📝
Later Reminders - Super simple way to schedule reminders on your phone
doo - A smart, simple app for reminders and to-dos