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.
Reminder - A better way to keep track of your reminders 📝
Wonder for Slack - Remember the things your team forgets
doo - A smart, simple app for reminders and to-dos
Yuzz.it - A smart personal reminder
Notepad by ClickUp - Capture Ideas and Action Items with Notepad