Best Sidekick Scheduling Alternatives in 2026

20 tools from calendar apps ranked against Sidekick Scheduling on the same published basis.

  1. 1Sidekick Scheduling vs Lark
  2. 2Sidekick Scheduling vs Calendar.com
  3. 3Sidekick Scheduling vs Microsoft Outlook Calendar
  4. 4Sidekick Scheduling vs Teamup
  5. 5Sidekick Scheduling vs Cozi
  6. 6Sidekick Scheduling vs FlowSavvy
  7. 7Sidekick Scheduling vs Proton Calendar
  8. 8Sidekick Scheduling vs Reclaim AI
  9. 9Sidekick Scheduling vs TimeFinder
  10. 10Sidekick Scheduling vs EGroupware
  11. 11Sidekick Scheduling vs Google Calendar
  12. 12Sidekick Scheduling vs Fantastical
  13. 13Sidekick Scheduling vs Notion Calendar
  14. 14Sidekick Scheduling vs Mozilla Thunderbird
  15. 15Sidekick Scheduling vs Ellie Planner
  16. 16Sidekick Scheduling vs 7shifts
  17. 17Sidekick Scheduling vs Tilly
  18. 18Sidekick Scheduling vs eM Client
  19. 19Sidekick Scheduling vs Tuta Calendar
  20. 20Sidekick Scheduling vs Structured

Sidekick Scheduling alternatives compared

#ToolScoreFree planFromRuns on
1Lark9.2Free plan—Android, API, iOS, Linux, Mac, Web, Windows
2Calendar.com9.1Free plan$20/moAndroid, API, Browser, iOS, Web
3Microsoft Outlook Calendar9.0Free plan$1.67/moAndroid, iOS, Mac, Web
4Teamup8.9Free plan$12/moAndroid, API, iOS, Web
5Cozi8.9Free plan$3.25/moAndroid, iOS, Web
6FlowSavvy8.7Free plan—Android, iOS, Web
7Proton Calendar8.6Free planFreeAndroid, iOS
8Reclaim AI8.6Free plan$10/moBrowser, Web
9TimeFinder8.4Free planFreeWeb, Windows, Mac, iOS, Android
10EGroupware8.4No€21.90/moWeb, Linux, Windows, Mac
11Google Calendar8.3No$7/moAndroid, iOS
12Fantastical8.3Free planFreeiOS
13Notion Calendar8.2Free planFreeAndroid, iOS
14Mozilla Thunderbird8.2Free planFreeAndroid, Linux, Mac, Windows
15Ellie Planner8.2Free plan$9.99/moiOS, Mac, Web, Windows
167shifts8.2Free planFreeAndroid, API, iOS, Web
17Tilly8.2Free plan$5/moiOS, Mac, Web
18eM Client8.2Free plan$3.33/moAndroid, iOS, Mac, Windows
19Tuta Calendar8.1Free plan€3/moAndroid, iOS
20Structured8.1No—Android, iOS, Mac, Web
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Questions about Sidekick Scheduling alternatives

What is the best alternative to Sidekick Scheduling?

Lark, number 1 in calendar apps with a score of 9.2 out of 10. The others here: Calendar.com, Microsoft Outlook Calendar, Teamup and 16 more.

What is the best free alternative to Sidekick Scheduling?

Lark is the best-ranked alternative with a free plan. 17 of the 20 alternatives here publish a free plan on their own pricing pages.

Is there an open-source alternative to Sidekick Scheduling?

Yes: EGroupware, Mozilla Thunderbird.

How are these alternatives ranked?

Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.