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Zoho Calendar alternatives: 5 apps ranked by verified data

Facts checked Oct 25, 2026AppBreakup editorialHow we rank

Common reasons people leave Zoho Calendar: no native desktop app, and busy interface. We ranked 5 alternatives by how directly each one replaces Zoho Calendar, then by reviews, real visits and how recently each app's facts were checked against its own website. Google Calendar currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1Proton Calendar logoProton CalendarFree plan + paidYesWeb, iOS, Android +34 of 462.6
2Tuta Calendar logoTuta CalendarFree plan + paidYesWeb, iOS, Android +34 of 455.3
  1. Proton Calendar logo

    1. Proton CalendarTop pick

    Best for: Privacy-minded people and teams who want encrypted calendars, ideally with Proton Mail

    Free plan + paidOpen sourceWeb, iOS, Android, macOS, Windows, Linux

    62.6

    score / 100

    Why switch from Zoho Calendar

    Encrypted events from a privacy-focused provider.

    Pros

    • End-to-end encrypted event details
    • Swiss jurisdiction and open-source apps
    • Free plan, bundled with Proton Mail on paid plans

    Cons

    • No direct CalDAV sync with third-party clients
    • Fewer integrations than Google Calendar
    • Best value only if you use other Proton apps
    Visit Proton Calendar Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Proton Calendar a good Zoho Calendar alternative?

    Verified facts

    4 of 4 verified
    End-to-end encryption
    Yes
    Checked Oct 25, 2026proton.me(opens source in a new tab)
    Jurisdiction
    Switzerland
    Checked Oct 25, 2026proton.me(opens source in a new tab)
    Desktop apps
    macOS, Windows, Linux
    Checked Oct 25, 2026proton.me(opens source in a new tab)
    Free plan
    Yes
    Checked Oct 25, 2026proton.me(opens source in a new tab)
  2. Tuta Calendar logo

    2. Tuta Calendar

    Best for: Privacy-focused users who want an encrypted calendar with open-source apps

    Free plan + paidOpen sourceWeb, iOS, Android, Windows, macOS, Linux

    55.3

    score / 100

    Why switch from Zoho Calendar

    Encrypted calendar with open-source desktop apps.

    Pros

    • Encrypted calendar with open-source clients
    • Apps on every major platform, including Linux
    • Android APK available outside Google Play

    Cons

    • Free plan limited to one calendar
    • No CalDAV sync with other calendar apps
    • Basic features compared with mainstream calendars
    Visit Tuta Calendar Details and reviews
    How this score is calculated
    Editorial fit ×0.363
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Tuta Calendar a good Zoho Calendar alternative?

    Verified facts

    4 of 4 verified
    Mobile apps
    Free, Android and iPhone
    Checked Oct 25, 2026tuta.com(opens source in a new tab)
    Desktop clients
    Open source for Windows, macOS, Linux
    Checked Oct 25, 2026tuta.com(opens source in a new tab)
    Free plan calendars
    1
    Checked Oct 25, 2026tuta.com(opens source in a new tab)
    Android APK
    Available from GitHub
    Checked Oct 25, 2026tuta.com(opens source in a new tab)

The best Zoho Calendar alternative for…

The highest-ranked app in this list for each need.

Google Calendar logo

Best Zoho Calendar alternative for most people

Google Calendar

The most widely used free calendar, with more integrations.

Notion Calendar logo

Best Zoho Calendar alternative for a free option

Notion Calendar

A faster desktop client for Google and Outlook calendars.

Proton Calendar logo

Best Zoho Calendar alternative for a free plan you can upgrade

Proton Calendar

Encrypted events from a privacy-focused provider.

Tuta Calendar logo

Best Zoho Calendar alternative for open source

Tuta Calendar

Encrypted calendar with open-source desktop apps.

Proton Calendar logo

Best Zoho Calendar alternative for Mac

Proton Calendar

Encrypted events from a privacy-focused provider.

Proton Calendar logo

Best Zoho Calendar alternative for Windows

Proton Calendar

Encrypted events from a privacy-focused provider.

Proton Calendar logo

Best Zoho Calendar alternative for Linux

Proton Calendar

Encrypted events from a privacy-focused provider.

Zoho Bookings logo

Best Zoho Calendar alternative for iPhone and Android

Zoho Bookings

Zoho's dedicated scheduler if customer booking is the main need.

Google Calendar logo

Best Zoho Calendar alternative for working in the browser

Google Calendar

The most widely used free calendar, with more integrations.

Zoho Calendar alternatives: common questions

What is the best alternative to Zoho Calendar?

Google Calendar ranks first right now. The most widely used free calendar, with more integrations. Proton Calendar and Notion Calendar follow it in our ranking.

Is there a free alternative to Zoho Calendar?

Yes. Google Calendar (free plan + paid), Proton Calendar (free plan + paid), Notion Calendar (free) and Tuta Calendar (free plan + paid) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to Zoho Calendar?

Yes: Proton Calendar and Tuta Calendar.

Which Zoho Calendar alternatives work on Linux?

Proton Calendar and Tuta Calendar run on Linux.

Why do people switch from Zoho Calendar?

The complaints we hear most: no native desktop app; busy interface; fewer integrations outside the Zoho family.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces Zoho Calendar, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.