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Best InstaCal Alternatives in 2026

Updated

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

  1. 1
    Lark Free plan AndroidapiiOSLinuxMac 9.2
    InstaCal vs Lark
  2. 2
    Calendar.com Free plan AndroidapiextensioniOSWeb $20/mo9.1
    InstaCal vs Calendar.com
  3. 3
    Microsoft Outlook Calendar Free plan AndroidiOSMacWeb $1.67/mo9.0
    InstaCal vs Microsoft Outlook Calendar
  4. 4
    TimeFinder Free plan AndroidiOSMacWebWin Free9.0
    InstaCal vs TimeFinder
  5. 5
    Teamup Free plan AndroidapiiOSWeb $12/mo8.9
    InstaCal vs Teamup
  6. 6
    Cozi Free plan AndroidiOSWeb $3.25/mo8.9
    InstaCal vs Cozi
  7. 7
    TimeTree Free plan AndroidiOSWeb $3.75/mo8.9
    InstaCal vs TimeTree
  8. 8
    Fantastical Free plan iOSMacWin Free8.9
    InstaCal vs Fantastical
  9. 9
    Tweek Free plan AndroidiOSMacWeb $4.17/mo8.8
    InstaCal vs Tweek
  10. 10
    FlowSavvy Free plan AndroidiOSWeb 8.7
    InstaCal vs FlowSavvy
  11. 11
    Informant Free plan AndroidextensioniOSMacWeb 8.7
    InstaCal vs Informant
  12. 12
    Proton Calendar Free plan AndroidiOS Free8.6
    InstaCal vs Proton Calendar
  13. 13
    Reclaim AI Free plan extensionWeb $10/mo8.6
    InstaCal vs Reclaim AI
  14. 14
    Calendars by Readdle Free plan iOSMac $1.67/mo8.6
    InstaCal vs Calendars by Readdle
  15. 15
    Amie Free plan iOSMacWin Free8.6
    InstaCal vs Amie
  16. 16
    Trevor AI Free plan Web $0.42/mo8.4
    InstaCal vs Trevor AI
  17. 17
    EGroupware Free trial Open sourceWebLinuxWinMac €21.90/mo8.4
    InstaCal vs EGroupware
  18. 18
    SkedPal Free trial AndroidiOSLinuxMacWeb $9.95/mo8.4
    InstaCal vs SkedPal
  19. 19
    FamilyWall Free plan AndroidiOSWeb $3.75/mo8.4
    InstaCal vs FamilyWall
  20. 20
    Google Calendar AndroidiOS $7/mo8.3
    InstaCal vs Google Calendar

InstaCal alternatives compared

#ToolScoreFree planFromRuns on
1Lark9.2Free planAndroid, 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
4TimeFinder9.0Free planFreeAndroid, iOS, Mac, Web, Windows
5Teamup8.9Free plan$12/moAndroid, API, iOS, Web
6Cozi8.9Free plan$3.25/moAndroid, iOS, Web
7TimeTree8.9Free plan$3.75/moAndroid, iOS, Web
8Fantastical8.9Free planFreeiOS, Mac, Windows
9Tweek8.8Free plan$4.17/moAndroid, iOS, Mac, Web
10FlowSavvy8.7Free planAndroid, iOS, Web
11Informant8.7Free planAndroid, Browser, iOS, Mac, Web
12Proton Calendar8.6Free planFreeAndroid, iOS
13Reclaim AI8.6Free plan$10/moBrowser, Web
14Calendars by Readdle8.6Free plan$1.67/moiOS, Mac
15Amie8.6Free planFreeiOS, Mac, Windows
16Trevor AI8.4Free plan$0.42/moWeb
17EGroupware8.4€21.90/moWeb, Linux, Windows, Mac
18SkedPal8.4No$9.95/moAndroid, iOS, Linux, Mac, Web, Windows
19FamilyWall8.4Free plan$3.75/moAndroid, iOS, Web
20Google Calendar8.3$7/moAndroid, iOS
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Questions about InstaCal alternatives

What is the best alternative to InstaCal?

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

What is the best free alternative to InstaCal?

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 InstaCal?

Yes: EGroupware.

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.