Teamup Calendar - Cloud-based calendaring using capability URL, application developed in Zurich, Switzerland.
Fantastical 2 - Fantastical, the Mac calendar app you'll enjoy using. Quickly create new events with natural language input and more.
Teamweek - A project management software to help you get the best overview. Plan fast, change plans faster!
Microsoft Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Cronofy - Unified Calendar API for developers
Morgen.so - All-in-one Calendar, Tasks & Scheduler. Morgen is the single hub for everything that revolves around time management.