Tuta Calendar vs Zoho Calendar

Tuta Calendar

• People who want a calendar their provider cannot read
• Tuta Mail users who want email, contacts and calendar in one account
• Linux users looking for an open-source desktop calendar client

Zoho Calendar

• Teams already using Zoho Mail or Zoho Workplace
• Individuals who want a free web calendar with one booking page
• Organizations that need free/busy lookups across Zoho, Exchange and Google

Tuta Calendar

• The Free plan includes one calendar and has no calendar sharing, event invitations or offline support.
• Calendar has no subscription of its own: paid features come with Tuta's paid personal or business mail plans.
• Prices are listed in euros: personal plans include taxes, business plans exclude them, and totals can vary with payment platform fees and exchange rates.
• Other calendars are brought in by import; the calendar page mentions no two-way sync with Google or Outlook calendars.

Zoho Calendar

• Free users can create 1 appointment booking link; paid Zoho Mail or Workplace users can create up to 10.
• Resource booking for meeting rooms is available only with a paid Zoho Mail plan.
• There is no standalone paid Calendar plan: upgrades are Zoho Mail or Workplace subscriptions, and Mail Lite and Mail Premium are billed annually only.
• Calendar's own apps are for the web, iOS and Android; Zoho's Trident desktop app for macOS and Windows is listed on paid plans.

Tuta Calendar

End-to-end encryption

Events, invitations and shared calendars are encrypted end to end with what Tuta calls quantum-safe encryption, so the provider cannot read them.

Encrypted reminders

Event reminders arrive as push notifications on phones and computers. They are sent encrypted and kept hidden from the phone's operating system.

Calendar sharing

On paid plans a calendar can be shared with family or colleagues with read only, read and write, or write and manage sharing rights.

Event invitations

Paid plans can send and receive calendar invitations, and can send one encrypted to someone outside Tuta using a shared password.

Apps on every platform

Apps for Android and iPhone, open-source desktop clients for Windows, macOS and Linux, and a browser version. The Android app is also offered through F-Droid.

Built into Tuta Mail

The calendar shares an account with Tuta's encrypted email and contacts, and existing calendars can be imported in the settings.

Zoho Calendar

Events with Smart Add

Type a phrase such as "Meeting with John tomorrow at 2pm" and the event is created. Views switch between day, week, month and agenda, and events move by drag and drop.

Appointment booking pages

Share a booking page with set durations, buffer times and a daily cap, and require guests to verify their email. Free users get 1 booking link; paid users get up to 10.

Shared and group calendars

Share a calendar publicly or with chosen people, create group calendars for a team, and subscribe to holiday, public or colleagues' calendars.

Sync with other calendars

Two-way sync with Google Calendar and Outlook lets you add, edit and delete their events in Zoho Calendar. Calendly events can be viewed, and CalDAV and Exchange ActiveSync connect other apps and devices.

Resource booking

Check the availability of meeting rooms and other resources in your organization and book them in advance. Available only on paid Zoho Mail plans.

Interoperability and API

Admins can let Zoho users and Microsoft Exchange or Google Calendar users see each other's free/busy status. A REST API and a Zapier integration are available.

Tuta Calendar

• Free€0

  One encrypted calendar, 1 GB of storage and apps on every platform. No calendar sharing or event invitations.

• Revolutionary€3

  per month, paid yearly (€3.60 paid monthly), incl. taxes

  Tuta's personal mail and calendar plan: unlimited calendars, calendar sharing, event invitations, offline support and 20 GB of storage.

• Legend€8

  per month, paid yearly (€9.60 paid monthly), incl. taxes

  The same calendar features with 500 GB of storage, 30 extra email addresses, 10 custom domains and priority email support.

• Essential€6

  per user / month, paid yearly (€7.20 paid monthly), excl. taxes

  Business plan with unlimited calendars, sharing and event invitations, shared mailboxes and 50 GB of storage per user.

• Advanced€8

  per user / month, paid yearly (€9.60 paid monthly), excl. taxes

  Business plan with the same calendar features, 500 GB of storage per user, 10 custom domains and priority email support.

• Unlimited€12

  per user / month, paid yearly (€14.40 paid monthly), excl. taxes

  Business plan with 1,000 GB of storage per user, unlimited custom domains and custom branding.

Zoho Calendar

• Free$0

  The calendar with events, sharing, subscriptions, sync and 1 booking link. Zoho's Mail Free plan covers up to 5 users.

• Mail Lite$1

  per user / month, billed annually; no monthly plan

  Zoho Mail with 5 GB of mail storage per user ($1.25 for 10 GB) and shared calendars. Paid users can create up to 10 booking links.

• Workplace Standard$3

  per user / month, billed annually ($4 billed monthly)

  30 GB of mail storage per user, plus WorkDrive file storage, the office apps, Cliq chat and Zoho Meeting next to Calendar.

• Mail Premium$4

  per user / month, billed annually; no monthly plan

  50 GB of mail storage per user plus 50 GB of retention storage, with email retention and eDiscovery, S/MIME and shared calendars.

• Workplace Professional$6

  per user / month, billed annually ($7 billed monthly)

  100 GB of mail storage per user, 1 TB of team file storage, and the full Workplace suite including Meeting, Vault and Connect.

• Workplace EnterpriseCustom

  The highest plans and custom limits of the included Workplace products, priced through sales.

Tuta Calendar

• Annual discount

  Pay yearly and save two months

  Tuta's pricing page shows a yearly payment saving €7.20 on the lowest paid plan (€36 instead of €43.20) and €19.20 on Legend (€96 instead of €115.20).

• Nonprofit

  50% off for nonprofits and schools

  Registered nonprofits and schools for general education can apply to Tuta's sales team for a 50% discount on a subscription.

• Other savings

  Free for qualifying open source projects

  Open source teams can apply by email for a free version of Tuta. Tuta's blog sets out which projects qualify.

Zoho Calendar

• Annual discount

  Lower Workplace rates with annual billing

  Zoho's pricing lists Workplace Standard at $3 per user a month billed annually against $4 billed monthly, and Workplace Professional at $6 against $7.