Proton Calendar: Secure Events2.25.1 - App Store

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

Version History Minor bug-fixes. 2.25.1 Jun 3 Minor fixes and improvements. 2.25.0 Mar 25 - updated translations
- minor bug-fixes 2.24.0 12/05/2025 - Timezones Settings 2.23.0 10/29/2025 Minor bug fixes 2.22.0 09/23/2025 New in this version:
- Small widget
- General improvements and bug fixes 2.21.0 09/04/2025 New in this version:
- You can now use Proton Calendar in full portrait and landscape mode on iPad. 2.20.0 07/07/2025 New in this version:
- You can now use Proton Calendar in full portrait mode on iPad. 2.19.0 06/19/2025 New in this version:
- You can now see week numbers if you have the setting for it turned on. 2.18.0 05/29/2025 New in this version:
- You can now create and edit events in calendars shared with you. 2.17.0 05/14/2025 New in this version:
- Enhanced widget to display upcoming events in a 30 day window.
- Fixed mini calendar layout issue where not all days were displayed. 2.16.2 03/12/2025 Fixed in this version:
- Fixed an issue causing the "Not all recipients have contents assigned" error when sending invites. 2.16.1 03/04/2025 New in this version:
- Introducing Widgets! Stay updated, access your calendar right from your home screen. Available in two sizes: Medium and Large. 2.16.0 01/16/2025 New in this version:
- Support for app icon customization – light, dark, or tinted. Pick your favorite! 2.15.0 12/23/2024 New in this version:
- Multi-line Event Descriptions: Event descriptions now support multiple lines for better readability
- Contacts Improvements: Improved display of contact names and streamlined handling of unexisting attendees 2.14.0 11/18/2024 Fixed in this version:
- Issue where calendar events without attendees could not be edited from the web client 2.13.2 09/25/2024 Fixed in this version:

- General stability 2.13.1 09/11/2024 New in this version:
- Edit events with participants: you can now edit any invitations when your plans change.

Fixed in this version:
- General stability 2.13.0 09/02/2024 Fixed in this version:
- General stability. 2.12.1 07/01/2024 New in this version:
- Custom event colors: Now you can color-code your calendar to better organize your day, track your time, prioritize tasks, and more,
- Updated the distribution of event dots on the mini month calendar. 2.12.0 05/13/2024 New in this version:
- 3 days view: now you can get a focused snapshot of any 3 consecutive days in your calendar. 2.11.0 04/24/2024 New in this version:
- Press and hold to create events: simply press on the day or week calendar to create a new event.

Fixed in this version:
- Crash while opening the app,
- Notifications sent for deleted events,
- Issue with event start/end time editing,
- Stability improvements. 2.10.0 04/10/2024 New in this version:
- Week view: plan your time more efficiently with a week-by-week overview of your upcoming events. 2.9.0 03/19/2024 Fixed in this version:
- Cross-client compatibility when editing events 2.8.1 03/14/2024 New in this version:
- Send invitations: You can now add participants to your events.
- Norwegian language support. 2.8.0 03/07/2024