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Best Microsoft Outlook Calendar Alternatives in 2026

12 tools from calendar apps ranked against Microsoft Outlook Calendar on the same published basis.

  1. 1
    Calendar.com Free plan AndroidapiextensioniOSWeb $20/mo9.1
    Microsoft Outlook Calendar vs Calendar.com
  2. 3
    Lark Free plan AndroidapiiOSLinuxMac 8.9
    Microsoft Outlook Calendar vs Lark
  3. 4
    Teamup Free plan AndroidapiiOSWeb $12/mo8.9
    Microsoft Outlook Calendar vs Teamup
  4. 5
    EGroupware Free trial Open sourceWebLinuxWinMac €21.90/mo8.8
    Microsoft Outlook Calendar vs EGroupware
  5. 6
    Google Calendar AndroidiOS $7/mo8.7
    Microsoft Outlook Calendar vs Google Calendar
  6. 7
    FlowSavvy Free plan AndroidiOSWeb 8.7
    Microsoft Outlook Calendar vs FlowSavvy
  7. 8
    Proton Calendar Free plan AndroidiOS Free8.6
    Microsoft Outlook Calendar vs Proton Calendar
  8. 9
    Reclaim AI Free plan extensionWeb $0.83/mo8.6
    Microsoft Outlook Calendar vs Reclaim AI
  9. 10
    CalendarBridge AI Scheduling Assistant Free trial AndroidiOSWeb $4/mo8.5
    Microsoft Outlook Calendar vs CalendarBridge AI Scheduling Assistant
  10. 11
    TimeFinder Free plan WebWinMaciOSAndroid Free8.4
    Microsoft Outlook Calendar vs TimeFinder
  11. 12
    Nextcloud Calendar AndroidiOS €3.50/mo8.3
    Microsoft Outlook Calendar vs Nextcloud Calendar
  12. 13
    Fantastical Free plan iOS Free8.3
    Microsoft Outlook Calendar vs Fantastical
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