Proton calendar

Everything you need to keep your schedule private

Protected by the same end-to-end encryption used in Proton Mail, Proton Calendar has all the features you need to manage your events easily.

Need a secure calendar for work? Discover Proton for Business.

Proton Calendar app
Proton Calendar app
The Proton Calendar web and mobile apps.

Manage your schedule across devices and apps

Easily import your calendar to Proton Calendar and stay on top of your schedule securely across all your devices and Proton apps.

<h5>Organize from any device</h5>

Organize from any device

Proton Calendar is always in sync across your devices with apps for the web and Android (with iOS coming soon).
<h5>Do more with Proton Mail</h5>

Do more with Proton Mail

Manage invitations without leaving your Proton Mail inbox. Quickly add events received by email, such as flights, meetings, or concerts.

Stay on top of your schedule


Quickly manage your everyday events.

  • Stay focused
    Switch between different views to focus on the important events coming up in the next day, week, or month.
  • Never forget an appointment
    Create events that repeat on a daily, weekly, monthly, or fully customizable basis to keep track of your entire schedule.
  • Set reminders that work for you
    Customize your notifications and add multiple reminders or email alerts so you never forget what's next.
  • Personalize your calendar
    Customize Proton Calendar to work for you. Choose between multiple themes, including a dark mode, high contrast mode, and more.
Proton Calendar monthly view.

Make every day safer


Protect your schedule from prying eyes
View of the data that Proton Calendar protects with end-to-end encryption.

End-to-end encrypted

Whether you’ve scheduled a doctor’s appointment, a bank visit, or a meetup with an old friend, it's encrypted on your device so no one can see it but you.

Ad-free

No ugly or distracting ads. Even better, we don’t invade your privacy to target you with ads. What is on your schedule is for your eyes only.

You control access

Paid plan required
You can choose if someone gets full access to your calendar or only a limited view of your availability.

Stay in sync with friends, family, or your team


Share your calendar as you see fit, know when others are available, and send them invitations.
<h5>Show when you’re available</h5>

Show when you’re available

Paid plan required
Share your calendar with your family, friends, or colleagues via a link. Choose to display just your availability or the full details of your calendar.
<h5>Check everyone’s schedule at a glance</h5>

Check everyone’s schedule at a glance

Subscribe to a family member's, friend's, or team's schedule, even if they use another calendar service.
<h5>Manage your contacts right from your calendar</h5>

Manage your contacts right from your calendar

Use our Contacts widget to add, remove, merge, or import encrypted contacts with a single click. You can also directly add contacts to an event.

Upgrade to get more out of your calendar


Unlock collaboration, more calendars, and support our mission to build a better internet where privacy is the default.
Use separate calendars to track your different schedules
Categorize work and family events with separate calendars
Create separate calendars for any purpose to make sure you don't miss what's coming up while keeping your schedule tidy.
Share your calendar and decide whether people see your event details or just your availability.
Share your calendar
Share your calendars with your family, friends, or colleagues via a link or by inviting them directly. Choose to display just your availability or the full details of your calendar.

Decide who sees your calendar and when

Whether you’ve scheduled an interview, a doctor’s appointment, or a meetup with friends, you control who gets access to that information.