Thunderbird is a free and open source email, newsfeed, chat, and calendaring client

Forget about forgetting things

Gerencie sua agenda

Gerencie seus e-mails, contatos e programação

A simple kanban-styled planner

Um incrível widget de calendário

A simple graphical tool to purge old events from CalDAV calendars

Personal organizer

A time related task manager

A Persian/Jalali/Farsi calendar