Best Tuta Calendar Alternatives in 2026

Updated October 2026

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

1
Lark Free plan AndroidapiiOSLinuxMac 9.2
Tuta Calendar vs Lark
2
Calendar.com Free plan AndroidapiextensioniOSWeb $20/mo9.1
Tuta Calendar vs Calendar.com
3
Microsoft Outlook Calendar Free plan AndroidiOSMacWeb $1.67/mo9.0
Tuta Calendar vs Microsoft Outlook Calendar
4
Teamup Free plan AndroidapiiOSWeb $12/mo8.9
Tuta Calendar vs Teamup
5
Cozi Free plan AndroidiOSWeb $3.25/mo8.9
Tuta Calendar vs Cozi
6
TimeTree Free plan AndroidiOSWeb $3.75/mo8.9
Tuta Calendar vs TimeTree
7
FlowSavvy Free plan AndroidiOSWeb 8.7
Tuta Calendar vs FlowSavvy
8
Proton Calendar Free plan AndroidiOS Free8.6
Tuta Calendar vs Proton Calendar
9
Reclaim AI Free plan extensionWeb $10/mo8.6
Tuta Calendar vs Reclaim AI
10
Trevor AI Free plan Web $0.42/mo8.4
Tuta Calendar vs Trevor AI
11
TimeFinder Free plan AndroidiOSMacWebWin Free8.4
Tuta Calendar vs TimeFinder
12
EGroupware Free trial Open sourceWebLinuxWinMac €21.90/mo8.4
Tuta Calendar vs EGroupware
13
FamilyWall Free plan AndroidiOSWeb $3.75/mo8.4
Tuta Calendar vs FamilyWall
14
Google Calendar AndroidiOS $7/mo8.3
Tuta Calendar vs Google Calendar
15
Fantastical Free plan iOS Free8.3
Tuta Calendar vs Fantastical
16
Rise Calendar Free plan AndroidiOSMacWin €10/mo8.3
Tuta Calendar vs Rise Calendar
17
Notion Calendar Free plan AndroidiOS Free8.2
Tuta Calendar vs Notion Calendar
18
Mozilla Thunderbird Free plan Open sourceAndroidLinuxMacWin Free8.2
Tuta Calendar vs Mozilla Thunderbird
19
Ellie Planner Free plan iOSMacWebWin $9.99/mo8.2
Tuta Calendar vs Ellie Planner
20
Sorted³ Free plan iOSMac $14.99/mo8.2
Tuta Calendar vs Sorted³

Tuta Calendar alternatives compared

#	Tool	Score	Free plan	From	Runs on
1	Lark	9.2	Free plan	—	Android, API, iOS, Linux, Mac, Web, Windows
2	Calendar.com	9.1	Free plan	$20/mo	Android, API, Browser, iOS, Web
3	Microsoft Outlook Calendar	9.0	Free plan	$1.67/mo	Android, iOS, Mac, Web
4	Teamup	8.9	Free plan	$12/mo	Android, API, iOS, Web
5	Cozi	8.9	Free plan	$3.25/mo	Android, iOS, Web
6	TimeTree	8.9	Free plan	$3.75/mo	Android, iOS, Web
7	FlowSavvy	8.7	Free plan	—	Android, iOS, Web
8	Proton Calendar	8.6	Free plan	Free	Android, iOS
9	Reclaim AI	8.6	Free plan	$10/mo	Browser, Web
10	Trevor AI	8.4	Free plan	$0.42/mo	Web
11	TimeFinder	8.4	Free plan	Free	Android, iOS, Mac, Web, Windows
12	EGroupware	8.4	No	€21.90/mo	Web, Linux, Windows, Mac
13	FamilyWall	8.4	Free plan	$3.75/mo	Android, iOS, Web
14	Google Calendar	8.3	No	$7/mo	Android, iOS
15	Fantastical	8.3	Free plan	Free	iOS
16	Rise Calendar	8.3	Free plan	€10/mo	Android, iOS, Mac, Windows
17	Notion Calendar	8.2	Free plan	Free	Android, iOS
18	Mozilla Thunderbird	8.2	Free plan	Free	Android, Linux, Mac, Windows
19	Ellie Planner	8.2	Free plan	$9.99/mo	iOS, Mac, Web, Windows
20	Sorted³	8.2	Free plan	$14.99/mo	iOS, Mac

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Questions about Tuta Calendar alternatives

What is the best alternative to Tuta Calendar?

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 Tuta Calendar?

Lark is the best-ranked alternative with a free plan. 18 of the 20 alternatives here publish a free plan on their own pricing pages.

Is there an open-source alternative to Tuta Calendar?

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.