When comparing KOrganizer vs Calcurse, the Slant community recommends Calcurse for most people. In the question“What are the best calendar apps for UNIX-like systems?” Calcurse is ranked 4th while KOrganizer is ranked 5th. The most important reason people chose Calcurse is:
E.g. CalDAV. Via its load/save hooks.
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Pros
Pro Multi-category
Pro Long-time support
Pro Integrated into KDE
It can be used by clicking on the datetime in the bottom right corner.
Pro Imports well from Google Calendar
Pro Easy and intuitive to use
Pro Supports arbitrary backends
E.g. CalDAV. Via its load/save hooks.
Pro Efficient
Uses very few resources, starts in the blink of an eye.
Pro Scriptable
You can use it in scripts via its command-line interface, and run scripts from it via hooks. So you can automate everything away, instead of being forced to use a GUI. A powerful feature.
Pro Fully customizable
Shortcuts, data sources, you name it. As real software should be.
Pro Simplicity
Cons
Con Search events by text shows empty results for existing events
Con Has issues with recurring events with exceptions
Has trouble with recurring events that have exceptions to them. If recurring even has an exception to the pattern at some point KOrganizer seems to not display any of the recurring events. Thus making it useless for complex calendars. After verifying that the akonadi back end did have the full set of events, KOrganizer just does not interpret them correctly.
Con Does not connect to secure CalDAV server
Con Does not connect to Fastmail
Con Crashes even whilst trying to launch the app
Con Crashes when trying to add new event
Con Requires KDE
Con Not made for app users
If you come to any professional or console software, expecting it to just behave like your Windows GUI apps, … you’re gonna have a bad time.
You will need to know what you want, and actually tell the program so, by configuring it. So that then, it will fit you like a glove instead, of you having to fit into a dumbest common denominator mold. Like all professional software.
Con No built-in help
The “help” function only tells you that you can use help on the program’s functions. But not what functions there are! How can you know what to ask for when you don’t know what there is? It’s like a text adventure game or Family Feud all over again.
Con Keybindings also used by certain graphical terminals
The keybindings of either program have to be changed in that (rare) case.