Proton Calendar: Secure Events
Proton Calendar: Secure Events Summary
Proton Calendar: Secure Events is a iOS app in the Productivity category, developed by Proton AG. First released 3 years ago(Nov 2022), the app has 849 ratings with a 3.65★ (average) average rating.
Recent activity: 7 new ratings this week (83 over 4 weeks) with healthy momentum. View trends →
Data tracking: SDKs and third-party integrations were last analyzed on Feb 10, 2025.
Store info: Last updated on App Store on Oct 29, 2025 .
3.65★
Ratings: 849
Screenshots
App Description
A 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 calendar from your Proton Mail inbox
- View your schedule in light or dark mode
- Add multiple reminders for your events
- Create recurring events on a daily, weekly, monthly, yearly, or custom basis
- Keep your calendar in sync across all your devices
Private by default
- No ads, no trackers, and no data harvesting
- We can’t spy on your calendar or misuse your data
- Protected by the same end-to-end encryption used in Proton Mail
- Event names, descriptions, and participants are stored with zero-access encryption
- Based in Switzerland, all your data is protected by strict Swiss privacy laws
People before profits
- Funded by users, not advertisers — Privacy is our business model
- Built by scientists and engineers who met at CERN and MIT and founded Proton Mail
- Used by high-profile journalists and organizations globally
What others say about Proton:
“Proton has now made it stupid-easy to encrypt your schedule. Information about what you plan to do, where, and with whom, can be just as sensitive as the messages you send and receive.” Gizmodo
Follow Proton on social media for all the latest news and offers:
Facebook: /proton
Twitter/X: @protonprivacy
Reddit: /protonmail
Instagram: /protonprivacy
EULA: http://www.apple.com/legal/itunes/appstore/dev/stdeula