Apple Calendar vs Kontact - KOrganizer : Which is Better?

Apple Calendar

Calendar is a personal calendar application made by Apple Inc. that runs on both the macOS desktop operating system and iOS mobile operating system. Developed by Apple

License: Free

Categories: Office & Productivity

Apps available for Mac OS X iPhone iPad iCloud

Kontact - KOrganizer

KOrganizer is the calendar and scheduling component of Kontact, the integrated personal information manager from KDE. Developed by KDE

License: Open Source

Categories: Office & Productivity

Apps available for Linux KDE

Apple Calendar VS Kontact - KOrganizer Feature comparision

Feature	Apple Calendar	Kontact - KOrganizer
Sync with iCloud
Week Planner
Address book integration
Built-in Calendar
Calendar integration
Exchange
Encryption
Privacy Protected
Privacy focused
Authenticated encryption
CardDAV
CalDAV
Task Management
Ad-free
Lightweight
Material design
GPS Location Tracking
Customizable
Events
Notifications
Email tracking
Run in background
Bundled with Windows
Apps that Sync with Google Calendar
ICloud Integration
Contacts
Convert Email to Task
Feed Reader
Standalone
Portable
Reminders
Scheduling
Todos
Data export/import
IFTTT integration
Reminder for deadlines
Built-in RSS reader
Emacs integration
Web-Based
Command line interface
Sync with Fantastical
Multiple languages
Artificial intelligence
Google Calendar integration