The powerful, full-featured Personal Information Manager for Windows offering Email, Synchronization, Portability, Network support, Android and iOS versions.
Cost / License
- Freemium
- Proprietary
Application types
Platforms
- Windows
- Android
- iPhone




The best Todo List Manager alternative to Lightning Calendar is EssentialPIM, which is free. If that doesn't suit you, our users have ranked more than 50 alternatives to Lightning Calendar and 18 are Todo List Managers so hopefully you can find a suitable replacement. Other interesting Todo List Manager alternatives to Lightning Calendar are Morgen, BusyCal, Merkuro Calendar and Outlook Calendar.
The powerful, full-featured Personal Information Manager for Windows offering Email, Synchronization, Portability, Network support, Android and iOS versions.




Brings together calendars, to-dos, productivity apps, and schedulers in one platform. Integrates with major services like Google Calendar, iCloud, Todoist, and video conferencing tools such as Zoom. Offers native scheduling similar to Calendly, enhancing time management efficiency.




BusyCal is the most powerful, flexible, heavily customizable, reliable calendar app for macOS. It's packed with time-saving features and compatible with all leading cloud services including Reminders, iCloud, Google, Exchange, Office 365, Yahoo, Fastmail, Fruux, Kerio, Zoom...




Merkuro is a calendar and contact application that allows you to manage your tasks, events and contacts. Merkuro supports both local calendars as well as a multitude of online calendars: Nextcloud, Google® Calendar, Outlook®, Caldav, and many more.




Web-based time-management tool featuring appointment scheduling, sharing, reminders, to-do list integration, iCalendar file import, collaborative options, multiple calendar creation, recurring events, and cross-device access for both personal and organizational use.

Cozi is a free online calendar that helps families coordinate activities. See who needs to be where and when, be reminded of upcoming appointments, and print your calendar by week or month. Cozi is the easiest online calendar you'll ever use.




It provides management of events and tasks, alarm notification, web export, network transparent handling of data, group scheduling, import and export of calendar files and more. It is able to work together with a wide variety of calendaring services, including NextCloud, Kolab...

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...



Combined calendar for all team and channel events.




Calcurse is a calendar and scheduling application for the command line. It helps keep track of events, appointments and everyday tasks. A configurable notification system reminds user of upcoming deadlines, the curses based interface can be customized to suit user needs and a...




Solid Calendar is a minimalist calendar app with natural language processing and 6 carefully designed layouts to make staying on top of your schedule a breeze.




CCalendar, formerly Moo Calendar, is a free Windows calendar software supports Google Calendar and Yahoo! calendar. It is featured with multiple calendars support, easy agenda generating and printing, handy TO-DO list and integrated weather forecast.



