There are many alternatives to Lightning Calendar for Windows if you are looking for a replacement. The best open source Windows alternative is Calendar Lock PEA. If that doesn't suit you, our users have ranked more than 50 alternatives to Lightning Calendar and seven of them are open source and available for Windows so hopefully you can find a suitable replacement. Other interesting open source Windows alternatives to Lightning Calendar are BORG Calendar, qOrganizer, GMinder and RemindMe desktop calendar.
Calendar encryption: View calendars and stores them encrypted on your device or in the cloud.
Almost everyone thinks Calendar Lock PEA is a great Lightning Calendar alternative.
Calendar Lock PEA is the most popular Linux alternative to Lightning Calendar.
BORG is a combination calendar and task tracking system. The calendar supports all sorts of appointments and also a simple todo list. The calendar functionality is similar to that of other PIMs, such as Microsoft Outlook, Mozilla Calendar, Palm Desktop, Yahoo Calendar, etc...
qOrganizer is a general organizer that includes a calendar with schedule,reminders,journal/notes for every day, to-do list.
GMinder is a reminder program that waits in your system tray and alerts you when you have an upcoming Google Calendar event.
RemindMe is a windows desktop application that will notify you of events that you created using this application. RemindMe will create a popup on the middle of the monitor you have your mouse cursor on(if you have multiple monitors).
wtplan (web terminal planner ) helps you manage a calendar. The calendar can be managed from a command line interface and/or a web interface. The calendar data is stored in a simple text file. wtplan integrates with git to make backup and synchronization between multiple...
jquery-calendar - A responsive jquery calendar scheduler built with bootstrap and moment.js
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Not a calendar application, but an encryption tool!