Organize your schedule and life’s important events in a calendar that’s fully integrated with your Thunderbird or Seamonkey email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.
Keep track of your busy schedule and share it with others using Calendar. Create separate calendars — one for home, another for school, a third for work, and so on. See all your calendars in a single window or choose to see only the calendars you want.
Fantastical is a flexible calendar with natural language event creation, a beautiful calendar and event list, support for CalDAV (including Google Calendar delegates) automatic alarms, and instant searching.
Kalendar is a Kirigami-based calendar application that uses Akonadi. It lets you add, edit and delete events from local and remote accounts of your choice, while keeping changes syncronised across your Plasma desktop or phone.
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 calendar that sits right on your Windows desktop.
Butleroy finds time for you and your friends. It is an automatic calendar planner app that integrates with existing calendars. It also helps you to manage your to-dos and schedules tasks when you actually have time.
Own your time with Calendars by Readdle across all your Apple devices – Mac, iPhone, iPad, and Apple Watch.
GroupCal redefines the way calendars work. It introduces a whole new way to create and manage shared calendars between groups of people. Each shared calendar holds events for a specific topic, such as - family, friends, and co-workers.