Best CaleyAI Alternatives in 2026

20 apps from calendar apps ranked against CaleyAI on the same published basis.

  1. 1CaleyAI vs Mozilla Thunderbird
  2. 2CaleyAI vs Microsoft Outlook Calendar
  3. 3CaleyAI vs Lark
  4. 4CaleyAI vs EGroupware
  5. 5CaleyAI vs Proton Calendar
  6. 6CaleyAI vs Teamup
  7. 7CaleyAI vs Cozi
  8. 8CaleyAI vs Calendar.com
  9. 9CaleyAI vs TimeFinder
  10. 10CaleyAI vs Notion Calendar
  11. 11CaleyAI vs TimeTree
  12. 12CaleyAI vs Fantastical
  13. 13CaleyAI vs Doodle
  14. 14CaleyAI vs Tuta Calendar
  15. 15CaleyAI vs Reclaim AI
  16. 16CaleyAI vs FlowSavvy
  17. 17CaleyAI vs Musubi
  18. 18CaleyAI vs Samsung Calendar
  19. 19CaleyAI vs Trevor AI
  20. 20CaleyAI vs Calendars by Readdle

CaleyAI 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 CaleyAI alternatives

What is the best alternative to CaleyAI?

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 CaleyAI?

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 CaleyAI?

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.