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.
Deadlines - A calendar app for students and freelancers
Reminder - A better way to keep track of your reminders 📝
App Spot - With App Spot, you can make an app for your WordPress blog on the spot.
doo - A smart, simple app for reminders and to-dos
ReadlineJs - A read position indicator at the top of the page .