Alternatives
Best Proton Calendar alternatives in 2026
Proton Calendar is privacy-focused calendar from the Proton suite with web and desktop apps. These 9 alternatives come from the same rankings, ordered by editorial score. Connected products carry a small, disclosed lift.
Ranked alternatives
- 1
Google Calendar
Works in any browser and on Android and iOS, with sharing and appointment booking included. Events need a Google Account, and there is no installed desktop app, unlike Apple Calendar or Outlook.
Best for Shared personal and family calendars across devices
WebiOSAndroidFree plan, paid upgrades
- 2
Calendar
Built into macOS and iOS and syncs iCloud and Google accounts with no extra install. It runs only on Apple devices, and its scheduling tools are simpler than Fantastical's.
Best for Apple users who want a built-in calendar
macOSiOSFree
- 3
Outlook
A full mail, calendar and tasks client on Windows and Mac, with delegate access and Copilot help. It is most useful when email also lives in Outlook, and its calendar alone is less focused than Fantastical.
Best for Email and calendar in one workplace app
WindowsmacOSiOSAndroidWebFree plan, paid upgrades
- 4
Fantastical
Natural-language entry and a polished day-to-year view on Mac and iPhone, with a free plan. Scheduling and other extras need Premium, and there is no Windows or Android app.
Best for Polished personal planning on Mac and iPhone
macOSiOSFree plan, paid upgrades
- 5
BusyCal
Is a one-time purchase. A Mac-first calendar with tasks, sticky notes and a year planner, sold as a one-time license after a free trial. It runs on fewer platforms than Apple Calendar or Google Calendar, and it costs money after the 14-day trial.
Best for Mac users who want tasks and a planner inside the calendar
macOSiOS, iPadOSOne-time purchase
- 6
Morgen
Places tasks and events on one timeline, with AI suggestions, on Windows, Mac, Linux and the web. Pricing starts after a 14-day trial with no free plan listed, so a plain calendar is cheaper to start with.
Best for Daily planning that combines tasks with calendars
WindowsmacOSLinuxWebSubscription
- 7
Notion Calendar
A free calendar that puts Google Calendar events next to Notion pages and databases on desktop and phones. It is the pick for Notion users, and it adds less to the calendar than the dedicated apps above.
Best for Calendar for people who plan work in Notion
macOSWindowsiOSAndroidFree
- 8
Teamup
Teamup is a shared calendar for teams, with a free plan for up to five users, 12 views and nine access levels. It suits shared schedules more than personal planning, so it ranks below Google Calendar and Fantastical.
Best for Shared schedules for teams and resource bookings
WebiOSAndroidFree plan, paid upgrades
- 9
Zoho Calendar
A browser calendar from Zoho with mobile apps, event invitations and resource booking. It is free for individuals and teams, but it is plainer than the native apps in this list and suits browser-first teams.
Best for Browser-based team calendars with room booking
WebiOSAndroidFree
Compare Proton Calendar head to head
- Proton Calendarversus
Google Calendar - Proton Calendarversus
Calendar - Proton Calendarversus
Outlook - Proton Calendarversus
Fantastical - Proton Calendarversus
BusyCal - Proton Calendarversus
Morgen
Or build your own comparison table with Proton Calendar and up to three other products.
About Proton Calendar alternatives
- What is the best alternative to Proton Calendar?
- On listme.name the highest-scored alternative is Google Calendar, followed by Calendar. The right choice depends on price, platform and whether you need open source.
- Is there a free alternative to Proton Calendar?
- Yes. Free options include Google Calendar, Calendar, Outlook.
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