The world’s most secure calendar

One of the most rewarding aspects of working on ProtonCalendar was our unwavering commitment to user privacy. As the UX designer, I was responsible for ensuring that our design decisions aligned with this core principle. This involved designing features such as end-to-end encryption for calendar events, robust data protection mechanisms, and clear user interfaces to communicate these security measures. Proton Calendar is the world’s only calendar that uses end-to-end encryption and cryptographic verification to protect your entire schedule.

Secured by strong encryption

A calendar is a record of your life and contacts, and it contains some of your most sensitive online data. Proton Calendar helps you keep it safe automatically. With Proton Calendar, all of an event’s critical information, like the title, description, location, and attendees, are stored securely and privately with end-to-end encryption. Not even Proton can read your event details.