The web app version of Proton Calendar is open source, with the code for mobile apps to come next, Proton says. Proton Calendar is pitched as offering encryption for all event details, as well as 'high-performance elliptic curve cryptography (ECC Curve25519)' to lock it. Information about what you plan to do, where, and with whom, can be just as sensitive as the messages you send and receive.Proton Calendar, which claims to be the 'world's only' calendar using end-to-end encryption and cryptographic verification, has arrived on iOS, giving those seeking a more secure work suite an alternative to Google, Apple, and the like. “Proton has now made it stupid-easy to encrypt your schedule. Used by high-profile journalists and organizations globally

Built by scientists and engineers who met at CERN and MIT and founded Proton Mail

Funded by users, not advertisers - Privacy is our business model Based in Switzerland, all your data is protected by strict Swiss privacy laws Event names, descriptions, and participants are stored with zero-access encryption Protected by the same end-to-end encryption used in Proton Mail We can’t spy on your calendar or misuse your data No ads, no trackers, and no data harvesting Keep your calendar in sync across all your devices Create recurring events on a daily, weekly, monthly, yearly, or custom basis

View your schedule in light or dark mode Events and invites are automatically added to your calendar from your Proton Mail inbox See your upcoming events as you like with agenda or day view Read MoreĪ calendar is a record of your life: Proton Calendar helps keep it private. Make the most of your time - See your upcoming events as you like with agenda or day view - View and reply to invites - Events and invites are automatically added to your. A calendar is a record of your life: Proton Calendar helps keep it private.

Proton calendar app