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.
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.
Organize from any device
Proton Calendar is always in sync across your devices with apps for the web, Android and iOS.
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
Make every day safer
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 requiredYou can choose if someone gets full access to your calendar or only a limited view of your availability.
Proton Calendar was built by the team behind Proton Mail, the world’s largest encrypted email service
Over 70 million people and some of the world’s largest organizations have signed up with Proton.
Stay in sync with friends, family, or your team
Show when you’re available
Paid plan requiredShare your calendar with your family, friends, or colleagues via a link. Choose to display just your availability or the full details of your calendar.
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.
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
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.