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Best OneCalendar Alternatives in 2026

12 apps from calendar apps ranked against OneCalendar on the same published basis.

  1. 1
    Lark Free plan AndroidapiiOSLinuxMac 9.5
    OneCalendar vs Lark
  2. 2
    Microsoft Outlook Calendar Free plan AndroidiOSMacWeb $1.67/mo9.4
    OneCalendar vs Microsoft Outlook Calendar
  3. 3
    Calendar.com Free plan AndroidapiextensioniOSWeb $20/mo9.1
    OneCalendar vs Calendar.com
  4. 4
    Proton Calendar Free plan AndroidiOS Free9.0
    OneCalendar vs Proton Calendar
  5. 5
    Teamup Free plan AndroidapiiOSWeb $12/mo9.0
    OneCalendar vs Teamup
  6. 6
    Notion Calendar Free plan AndroidiOS Free8.8
    OneCalendar vs Notion Calendar
  7. 7
    Reclaim AI Free plan extensionWeb $0.83/mo8.8
    OneCalendar vs Reclaim AI
  8. 8
    FlowSavvy Free plan AndroidiOSWeb 8.8
    OneCalendar vs FlowSavvy
  9. 9
    Google Calendar AndroidiOS $7/mo8.7
    OneCalendar vs Google Calendar
  10. 10
    Tuta Calendar Free plan AndroidiOS €3/mo8.7
    OneCalendar vs Tuta Calendar
  11. 11
    Cozi Free plan AndroidiOS $3.25/mo8.7
    OneCalendar vs Cozi
  12. 12
    TimeFinder Free plan WebWinMaciOSAndroid Free8.7
    OneCalendar vs TimeFinder
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