Lightning Calendar - Organize your life — it’s about time!
AnyExam - Online platform for any exam, anytime, anywhere
Simple Calendar - A simple calendar with events (optional recurring and reminders), week numbers and a customizable...
Sunsama - Calendar and scheduling for teams
GMinder - GMinder is an open source Windows System Tray app that pops up to remind you about Google Calendar events.
Teamweek - A project management software to help you get the best overview. Plan fast, change plans faster!