Google Calendar
Free
Google Calendar is a cloud based calendar from Google.
eM Client
Free Personal
eM Client is a Windows based e-mail client for sending and receiving e-mails, managing calendars, contacts, and tasks.
Apple Calendar
Free
Calendar is a personal calendar application made by Apple Inc. that runs on both the macOS desktop operating system and iOS mobile operating system.
VueMinder Calendar
Freemium
VueMinder Calendar is a calendar app for Windows.
Osmo
Open Source
Osmo is a handy personal organizer, which includes calendar, tasks manager, address book and notes modules.
BusyCal
Commercial
BusyCal is a calendar app for mac.
Microsoft Office Outlook
Commercial
Microsoft Outlook is a personal information manager from Microsoft.
Lightning
Open Source
Lightning App Builder is a point-and-click tool that makes it easy to create custom pages for Salesforce1 and Lightning Experience.
Rainlendar
Freemium
Rainlendar is a calendar program for Windows, Mac OS X and Linux.
Calendar
Free
Calendar is a online calender platform.
Kontact - KOrganizer
Open Source
KOrganizer is the calendar and scheduling component of Kontact, the integrated personal information manager from KDE.
Compare Sunbird with alternatives
Compare Google Calendar and Sunbird and decide which is most suitable for you.
Compare Microsoft Office Outlook and Sunbird and decide which is most suitable for you.
Compare Apple Calendar and Sunbird and decide which is most suitable for you.
Compare VueMinder Calendar and Sunbird and decide which is most suitable for you.
Compare Kontact - KOrganizer and Sunbird and decide which is most suitable for you.