Organize your schedule and events in a calendar fully integrated with Thunderbird or Seamonkey… Created by Mozilla Foundation Organize your schedule and life’s important events in a calendar that’s fully integrated with your Thunderbird or Seamonkey email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.Lightning brings the Sunbird (Sunbird is discontinued) calendar to the popular email client, Mozilla Thunderbird and the SeaMonkey internet application suite. Since its an extension, Lightning is tightly integrated with Thunderbird or SeaMonkey, allowing it to easily perform email-related calendaring tasks….
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Lightning Calendar
Alternatives
| # | Image | App Name | Features | Platforms | Price | Website Link |
| 1 |  |
Calendar Lock PEA | Mac Windows Linux |
Free | Website | |
| 2 |  |
Simple Calendar | Android Tablet Android |
Commercial | Website | |
| 3 |  |
EssentialPIM | Windows Android iPhone |
Freemium | Website | |
| 4 |  |
GNOME Calendar | Linux | Free | Website | |
| 5 | Rainlendar Alternatives and Similar Software | Mac Windows Linux |
Free with limited functionality | Website | ||
| 6 |  |
Etar | Android Tablet Android |
Free | Website | |
| 7 |  |
Google Calendar |
Web Sunbird Chrome |
Chrome OS Android iPhone Android Tablet iPad |
Free | Website |
| 8 |  |
MineTime | Mac Windows Linux |
Free | Website | |
| 9 |  |
Fantastical | Mac iPhone Apple Watch iPad |
Commercial | Website | |
| 10 |  |
Apple Calendar | iCloud | Mac iPhone iPad |
Free | Website |