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.
VueMinder Calendar
Freemium
VueMinder Calendar is a calendar app for Windows.
eM Client
Free Personal
eM Client is a Windows based e-mail client for sending and receiving e-mails, managing calendars, contacts, and tasks.
Rainlendar
Freemium
Rainlendar is a calendar program for Windows, Mac OS X and Linux.
Osmo
Open Source
Osmo is a handy personal organizer, which includes calendar, tasks manager, address book and notes modules.
Compare Sunbird with alternatives
Compare Microsoft Office Outlook and Sunbird and decide which is most suitable for you.
Compare VueMinder Calendar and Sunbird and decide which is most suitable for you.