366
Part of the Microsoft Office Suite, Outlook is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.
181
Organize your schedule and events in a calendar fully integrated with Thunderbird or Seamonkey...
152
Keep track of your busy schedule and share it with others using Calendar.
109
Rainlendar is a feature rich calendar application that is easy to use and doesn't take much...
33
powerful calendar app for macOS
30
GMinder is a reminder program that waits in your system tray and alerts you when you have an...
29
A fully fledged, free email server solution, an open source project (GPL v2).
22
Cozi is a free online calendar that helps families coordinate activities.
18
Kontact is the integrated Personal Information Manager of KDE.
15
30 Boxes is an online calendering tool.
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