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ProtonMail Gets an Encrypted Calendar Companion Called ‘ProtonCalendar’

ProtonCalendar Beta
Proton Technologies AG

ProtonMail has announced the beta launch of a new encrypted calendar called ProtonCalendar. Said to be the “first fully encrypted calendar app,” the service is positioned as a rival to Google Calendar and makes ProtonMail a more attractive option for folks interested in privacy-minded alternatives to Google’s core products.

ProtonMail (run by Proton Technologies AG) launched in 2014 as a project of CERN researchers who saw the need for an email service with end-to-end encryption baked in as a primary feature. The platform has grown to more than 10 million users as of late 2018 and on the back of that growth, the developers have followed up by expanding the offerings to include ProtonVPN and now ProtonCalendar.

ProtonCalendar features end-to-end encryption and works similarly to other software calendars you’ve likely used. The beta build currently supports capabilities such as creating and deleting events, setting reminders, and automatically repeating events every day, week, or month. The company stresses that this service is still in early beta and will be updated over the coming months with additional features such as the ability to share your calendar with other ProtonMail users and send event invites to anyone—whether they’re on ProtonMail or not. You’ll also be able to sync events in your ProtonMail inbox with ProtonCalendar.

For now, the ProtonCalendar beta is limited to paid members of ProtonMail. It’s also only available when accessing ProtonMail through a web browser, though there are plans to introduce dedicated iOS and Android apps in 2020. ProtonMail subscriptions start at €4 per month ($4.47) and include features such 5GB of storage, the ability to send up to 1,000 messages per day, support for up to five email aliases and your own domain name, as well as priority customer support.


If you’re subscribed to ProtonMail, you can access ProtonCalendar by logging into your ProtonMail account through a web browser and you should see ProtonCalendar as a new option on the left sidebar. The company hasn’t specified when its encrypted calendar will be made available to free users, but it says a basic version will eventually launch for everyone who uses ProtonMail, while certain features will remain limited to paid members.

Along with announcing its new encrypted calendar, the company mentioned that it’s also working on a privacy-centric version of Google Drive called ProtonDrive, where you’ll be able to store and share files.

With ProtonCalendar, you can now quickly arrange your life and plan your events in a convenient, secure way. It uses the same end-to-end encryption that ProtonMail does, ensuring that no one, not even ProtonMail, can access your schedule except you.

Our calendar stops private companies from spying on your schedule. For our users with heightened security needs, ProtonCalendar will prevent authoritarian regimes from seeing who you are meeting with and what you are doing. It does this by keeping the details of all your events encrypted while they are stored on our servers. Even in the unlikely event of a breach, your agenda will remain secure.

ProtonCalendar is just the latest project in our mission to create a more private Internet. A calendar app has been one of our most requested products—pairing a secure calendar with a private inbox dramatically increases the utility of both. And soon, you will be able to privately save and share documents to the cloud with ProtonDrive. Our mission is to create an Internet that serves you and doesn’t require you to hand over your personal data to governments or corporations.

Source: ProtonMail

Matthew DeCarlo Matthew DeCarlo
Matthew DeCarlo has been in digital publishing for more than a decade, during which time he has authored and edited thousands of technology articles including industry news, hardware and software reviews, product buying guides, how-tos, editorials, in-depth explainers, trivia, and more. Read Full Bio »