GNOME Calendar
GNOME Calendar is a simple and beautiful calendar application designed to perfectly fit the GNOME…
21 Alternatives To GNOME Calendar
Apple Mail
There’s big news attached.
Calcurse
Calcurse is a calendar and scheduling application for the command line.
CalenGoo
Features | 1.0.175 for Android™
Calendar Lock PEA
Calendar Lock PEA is an encrypted desktop calendar with a day, week and month view. The shown calendars are never stored unencrypted on your disk, but exist only in the RAM.
California
California is a new calendar application for GNOME 3. It’s currently under heavy development.
Etar
Material design open source calendar for Android.
Evolution
Apps/Evolution - GNOME Wiki!
GMinder
GMinder is an open source Windows System Tray app that pops up to remind you about Google Calendar events.
Google Calendar
Spend less time managing your day & more time enjoying it
Kolab Community
Kolab Groupware is a secure, scalable, reliable, flexible, full-featured collaboration suite.
Kontact
Kontact is the integrated Personal Information Manager of KDE.
Kontact - KOrganizer
KOrganizer is the calendar and scheduling component of Kontact, the integrated personal information…
Lightning Calendar
Organize your life — it’s about time!
Nextcloud Calendar
The Calendar app is a user interface for Nextcloud’s CalDAV server.
Outlook
Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Rainlendar
Rainlendar - Customizable desktop calendar
Remember The Milk
Remember The Milk is a task and time management application for mobile devices.
Simple Calendar
A simple calendar with events (optional recurring and reminders), week numbers and a customizable…
VueMinder Calendar
Take control of your schedule and get reminded wherever and however you want.
aCalendar
TAPIRapps. aCalendar and aCalendar+ for Android. The fastest Android calendar.
fruux
Free service that takes care of your contacts, calendars and more so you don’t have to.