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Best Shared Calendar for Microsoft Teams Alternatives in 2026

Updated

20 apps from calendar apps ranked against Shared Calendar for Microsoft Teams on the same published basis.

  1. 1
    Mozilla Thunderbird Free plan Open sourceAndroidLinuxMacWin Free9.0
    Shared Calendar for Microsoft Teams vs Mozilla Thunderbird
  2. 2
    Microsoft Outlook Calendar Free plan AndroidiOSMacWeb $1.67/mo8.2
    Shared Calendar for Microsoft Teams vs Microsoft Outlook Calendar
  3. 3
    Lark Free plan AndroidapiiOSLinuxMac 8.2
    Shared Calendar for Microsoft Teams vs Lark
  4. 4
    EGroupware Free trial Open sourceWebLinuxWinMac €21.90/mo8.2
    Shared Calendar for Microsoft Teams vs EGroupware
  5. 5
    Proton Calendar Free plan AndroidiOS Free8.0
    Shared Calendar for Microsoft Teams vs Proton Calendar
  6. 6
    Teamup Free plan AndroidapiiOSWeb $12/mo8.0
    Shared Calendar for Microsoft Teams vs Teamup
  7. 7
    Cozi Free plan AndroidiOSWeb $3.25/mo8.0
    Shared Calendar for Microsoft Teams vs Cozi
  8. 8
    Calendar.com Free plan AndroidapiextensioniOSWeb $20/mo8.0
    Shared Calendar for Microsoft Teams vs Calendar.com
  9. 9
    TimeFinder Free plan AndroidiOSMacWebWin Free8.0
    Shared Calendar for Microsoft Teams vs TimeFinder
  10. 10
    Notion Calendar Free plan AndroidiOS Free7.9
    Shared Calendar for Microsoft Teams vs Notion Calendar
  11. 11
    TimeTree Free plan AndroidiOSWeb $3.75/mo7.9
    Shared Calendar for Microsoft Teams vs TimeTree
  12. 12
    Fantastical Free plan iOSMacWin Free7.9
    Shared Calendar for Microsoft Teams vs Fantastical
  13. 13
    Doodle Free plan Web $11/mo7.8
    Shared Calendar for Microsoft Teams vs Doodle
  14. 14
    Tuta Calendar Free plan AndroidiOS €3/mo7.8
    Shared Calendar for Microsoft Teams vs Tuta Calendar
  15. 15
    Reclaim AI Free plan extensionWeb $10/mo7.8
    Shared Calendar for Microsoft Teams vs Reclaim AI
  16. 16
    FlowSavvy Free plan AndroidiOSWeb 7.8
    Shared Calendar for Microsoft Teams vs FlowSavvy
  17. 17
    Musubi Free plan AndroidiOSself-hostedWeb Free7.8
    Shared Calendar for Microsoft Teams vs Musubi
  18. 18
    Samsung Calendar Free plan Android Free7.7
    Shared Calendar for Microsoft Teams vs Samsung Calendar
  19. 19
    Trevor AI Free plan Web $0.42/mo7.7
    Shared Calendar for Microsoft Teams vs Trevor AI
  20. 20
    Calendars by Readdle Free plan iOSMac $1.67/mo7.7
    Shared Calendar for Microsoft Teams vs Calendars by Readdle

Shared Calendar for Microsoft Teams alternatives compared

#AppScoreFree planFromRuns on
1Mozilla Thunderbird9.0Free planFreeAndroid, Linux, Mac, Windows
2Microsoft Outlook Calendar8.2Free plan$1.67/moAndroid, iOS, Mac, Web
3Lark8.2Free planAndroid, API, iOS, Linux, Mac, Web, Windows
4EGroupware8.2€21.90/moWeb, Linux, Windows, Mac
5Proton Calendar8.0Free planFreeAndroid, iOS
6Teamup8.0Free plan$12/moAndroid, API, iOS, Web
7Cozi8.0Free plan$3.25/moAndroid, iOS, Web
8Calendar.com8.0Free plan$20/moAndroid, API, Browser, iOS, Web
9TimeFinder8.0Free planFreeAndroid, iOS, Mac, Web, Windows
10Notion Calendar7.9Free planFreeAndroid, iOS
11TimeTree7.9Free plan$3.75/moAndroid, iOS, Web
12Fantastical7.9Free planFreeiOS, Mac, Windows
13Doodle7.8Free plan$11/moWeb
14Tuta Calendar7.8Free plan€3/moAndroid, iOS
15Reclaim AI7.8Free plan$10/moBrowser, Web
16FlowSavvy7.8Free planAndroid, iOS, Web
17Musubi7.8Free planFreeAndroid, iOS, self-hosted, Web
18Samsung Calendar7.7Free planFreeAndroid
19Trevor AI7.7Free plan$0.42/moWeb
20Calendars by Readdle7.7Free plan$1.67/moiOS, Mac
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Questions about Shared Calendar for Microsoft Teams alternatives

What is the best alternative to Shared Calendar for Microsoft Teams?

Mozilla Thunderbird, number 1 in calendar apps with a score of 9.0 out of 10. The others here: Microsoft Outlook Calendar, Lark, EGroupware and 16 more.

What is the best free alternative to Shared Calendar for Microsoft Teams?

Mozilla Thunderbird is the best-ranked alternative with a free plan. 19 of the 20 alternatives here publish a free plan on their own pricing pages.

Is there an open-source alternative to Shared Calendar for Microsoft Teams?

Yes: Mozilla Thunderbird, EGroupware.

How are these alternatives ranked?

Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.