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.
Kontact - KOrganizer
Open Source
KOrganizer is the calendar and scheduling component of Kontact, the integrated personal information manager from KDE.
Kontact
Open Source
Kontact is a personal information manager and groupware software suite developed by KDE. It supports calendars, contacts, notes, to-do lists, news, and email.
Compare Apple Calendar with alternatives
Compare Lightning and Apple Calendar and decide which is most suitable for you.
Compare Kontact and Apple Calendar and decide which is most suitable for you.
Compare Kontact - KOrganizer and Apple Calendar and decide which is most suitable for you.