Lightning Calendar Organize your schedule and events in a calendar fully integrated with Thunderbird or Seamonkey email. . Free Open Source Mac OS X Windows Linux Thunderbird SeaMonkey CalDAV CardDAV Add a feature 157 Like
Rainlendar Rainlendar is a feature rich calendar application that is easy to use and doesn't take much space on your desktop. The application is platform independent so you can... Freemium Mac OS X Windows Linux Customizable Sync with Fantastical Sync with Google Calendar Multiple languages Add a feature 94 Like
Kontact Kontact is the integrated Personal Information Manager of KDE. Kontact suite unites mature and proven KDE PIM applications under one roof. Thanks to the powerful... Free Open Source Windows Linux No features added Add a feature 25 Like
VueMinder Calendar Take control of your schedule and get reminded wherever and however you want. Instantly access your appointments, tasks, and notes with a simple glance at a transparent... Freemium Windows Sync with Google Calendar Portable Add a feature 14 Like
SSuite My Calendar Diary SSuite My Calendar Diary Portable is a software utility whose purpose is to provide individuals with a simple means of keeping better track of their schedule. ... Free Windows Portable Add a feature 2 Like
qOrganizer qOrganizer is a general organizer that includes a calendar with schedule,reminders,journal/notes for every day, to-do list. But provides features useful for students... Free Open Source Windows Linux BSD Portable Add a feature 3 Like Discontinued The project is no longer developed. Last version, 3.1.5, released in August 2010, can be still downloaded from SourceForge.
