Best OneCal Alternatives in 2026

Updated October 2026

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

OneCal alternatives compared

#	App	Score	Free plan	From	Runs on
1	Microsoft Outlook Calendar	9.7	Free plan	$1.67/mo	Android, iOS, Mac, Web
2	Proton Calendar	9.6	Free plan	Free	Android, iOS
3	Lark	9.6	Free plan	—	Android, API, iOS, Linux, Mac, Web, Windows
4	Calendar.com	9.6	Free plan	$20/mo	Android, API, Browser, iOS, Web
5	Teamup	9.5	Free plan	$12/mo	Android, API, iOS, Web
6	Cozi	9.5	Free plan	$3.25/mo	Android, iOS, Web
7	Notion Calendar	9.4	Free plan	Free	Android, iOS
8	Tuta Calendar	9.3	Free plan	€3/mo	Android, iOS
9	Fantastical	9.3	Free plan	Free	iOS
10	FlowSavvy	9.3	Free plan	—	Android, iOS, Web
11	Google Calendar	9.2	No	$7/mo	Android, iOS
12	Samsung Calendar	9.2	Free plan	Free	Android
13	TimeTree	9.2	Free plan	$4.49/mo	Android, iOS
14	TimeFinder	9.1	Free plan	Free	Web, Windows, Mac, iOS, Android
15	Calendars by Readdle	9.1	Free plan	$1.67/mo	iOS
16	Vyte	9.1	Free plan	$8/mo	Web, iOS
17	DayOtter	9.1	Free plan	$9/mo	Web, Android
18	Daybridge	9.0	Free plan	Free	Android, iOS
19	Vimcal	9.0	Free plan	$35/mo	iOS
20	Jorte	9.0	Free plan	$0.33/mo	Android, iOS

Make your app an alternative to OneCal

The sponsored alternative slot on this page is labelled Sponsored.

See the price

Questions about OneCal alternatives

What is the best alternative to OneCal?

Microsoft Outlook Calendar, number 1 in calendar apps with a score of 9.7 out of 10. The others here: Proton Calendar, Lark, Calendar.com and 16 more.

What is the best free alternative to OneCal?

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

How are these alternatives ranked?

Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation.