Google Calendar vs Proton Calendar

Google Calendar

• Anyone who already has a Google Account and wants a free calendar
• Organizations standardizing on Google Workspace for mail, files and meetings
• Taking bookings through a single free appointment page

Proton Calendar

• People who want event details kept unreadable to the provider
• Existing Proton Mail users who want invitations handled in the inbox
• Privacy-focused organizations standardizing on Proton's business suite

Google Calendar

• The paid version is only sold as part of Google Workspace, which also includes Gmail, Drive and Meet.
• Personal accounts and Business Starter get one booking page; extra schedules, payments and reminders need Business Standard or higher, or an eligible Google One plan.
• Time Insights and working hours and location are limited to work or school accounts, and Time Insights can only be viewed on a computer.
• No desktop app is listed; Google offers it on the web and as Android and iOS apps.

Proton Calendar

• Proton Free allows 3 personal calendars; Mail Plus and higher plans allow 25.
• Calendar sharing and booking pages need a paid plan, and Mail Plus and Proton Unlimited include only 1 booking page.
• Calendar has no subscription of its own: paid features come with Mail Plus, Proton Unlimited or a business plan.
• Desktop use is through the Proton Mail app for Mac, Windows and Linux, a 14-day trial on free accounts; the Linux app is labeled beta.

Google Calendar

Appointment booking pages

Publish a page where others pick a time on your calendar. Eligible paid plans allow several schedules, Stripe payments, email verification and up to 20 co-hosts.

Shared and layered calendars

Create calendars shared with a team or a whole organization, and view several calendars together, color-coded by category.

Scheduling from Gmail with Gemini

On Workspace plans, Gemini in Gmail can suggest meeting times and add events detected in an email with one click.

Google Meet and attachments

Events can carry a Google Meet video link and attached files, so the call and its documents open from the invitation.

Time Insights and working location

Work and school accounts can see how much time goes to meetings and who they meet most, and can share working hours and location.

Tasks on the calendar

Items from Google Tasks appear on the calendar next to events.

Proton Calendar

End-to-end encrypted events

An event's title, description, location and attendees are encrypted on your device. Events received from people on other calendar services are stored with zero-knowledge encryption.

Appointment booking pages

Publish a booking page that shows only the times you choose and syncs with your calendars to prevent double bookings. Confirmed meetings can include a Proton Meet link. Paid plans only.

Calendar sharing

On paid plans, share a calendar by link or by inviting people directly, showing either full event details or only your availability.

Works with Proton Mail

Send invitations from a Proton Mail address, manage them without leaving the inbox, and add events received by email, such as flights or meetings, to the calendar.

Recurring events and reminders

Events can repeat daily, weekly, monthly or on a custom pattern, with several reminders or email alerts each. Views switch between day, week and month.

Import and calendar subscriptions

The Easy Switch tool imports existing calendars from other providers, and you can subscribe to calendars that other people keep on a different service.

Google Calendar

• Personal Google Account$0

  Calendar for personal use with a single appointment booking page and no premium booking features.

• Business Starter$7

  per user / month, 1-year commitment ($8.40 flexible)

  Google Workspace with 30 GB pooled storage per user. Calendar is still limited to one booking page.

• Business Standard$14

  per user / month, 1-year commitment ($16.80 flexible)

  2 TB pooled storage per user, plus premium appointment schedules: multiple booking pages, payments and reminders.

• Business Plus$22

  per user / month, 1-year commitment ($26.40 flexible)

  5 TB pooled storage per user, with the same premium appointment schedule features as Business Standard.

• EnterpriseCustom

  For organizations beyond the 300-user limit of the Business editions; priced through Google sales.

Proton Calendar

• Proton Free$0

  3 personal calendars, end-to-end encryption, and sending and receiving invitations.

• Mail Plus$3.99

  per month, billed every 12 months ($47.88); $4.99 billed monthly

  25 personal calendars, calendar sharing and 1 booking page, plus 15 GB of storage and 10 email addresses.

• Proton Unlimited$9.99

  per month, billed every 12 months ($119.88); $12.99 billed monthly

  The same calendar features as Mail Plus, bundled with 500 GB of storage and Proton's VPN, password manager and cloud storage.

• Workspace Standard$12.99

  per user / month, billed every 12 months ($155.88)

  Business suite with 25 calendars and 25 booking pages per user, 1 TB of storage per user and 15 custom email domains.

• Workspace Premium$19.99

  per user / month, billed every 12 months ($239.88)

  Everything in Workspace Standard, plus 3 TB of storage per user, 20 custom email domains and data retention policies.

• EnterpriseCustom

  All Proton services in a customizable package with a dedicated account manager; priced through sales.

Google Calendar

• Annual discount

  Lower rate with a 1-year commitment

  Business Starter costs $7 per user per month on the Annual/Fixed-Term Plan versus $8.40 on the Flexible Plan. Standard drops from $16.80 to $14 and Plus from $26.40 to $22.

• Nonprofit

  Google Workspace for Nonprofits at $0

  Verified nonprofits get Google Workspace for Nonprofits at $0 per user, or Business Standard at $3.50 and Business Plus at $6.16 per user per month on a 1-year commitment.

• Education

  Education Fundamentals at no charge

  Google Workspace for Education Fundamentals is available at no charge to qualifying institutions.

• By country

  Lower price shown to buyers in India

  On 9 October 2026 Google's Workspace pricing page showed Starter at ₹270 per user a month to a reader in India. Google's help page gives the US rate for Business Starter as $7, or $8.40 without a 1-year commitment.

Proton Calendar

• Annual discount

  20% off Mail Plus on the 12-month plan

  Proton's pricing page lists Mail Plus at $3.99 a month when billed every 12 months ($47.88), against $4.99 billed monthly. Proton Unlimited is $9.99 instead of $12.99.

• Education

  Student discount for the first 12 months

  Students verified through Student Beans get 50% off Mail Plus and 62% off Proton Unlimited for the first 12 months; the plan then renews at the regular price.

• Nonprofit

  Reduced pricing for registered nonprofits

  Registered nonprofits can request discounted pricing on Proton's business plans from the sales team. No fixed percentage is published.