Proton Calendar: Secure Events v2.29.0
Proton AG
About this app
Developer Description
Private calendar: Reminders, schedule planner, calendar widget, time-management
Additional Highlights
✓ Schedule planner syncs automatically across browsers and devices
✓ Create recurring events on a daily, weekly, monthly, yearly, or custom basis
✓ Use as an appointment scheduler in local or foreign time zones
✓ Manage up to 20 calendars (paid feature)
✓ View your agenda from the home screen with the Proton Calendar widget
✓ Add multiple reminders for any event
✓ Use as a daily planner or monthly planner by switching between different views
✓ Choose to view your event schedule in dark mode or light mode
PRIVATE CALENDAR
✓ No ads, no trackers, and no data sharing with any third parties
✓ We can’t spy on your activities or misuse your data
✓ End-to-end encryption — fully encrypted data exchange between Proton Calendar users
✓ Zero-access encryption — event names, descriptions, and participants are encrypted on our servers
✓ Based in Switzerland 🇨🇭 — All your data is protected by strict Swiss privacy laws
USERS FIRST
Building an internet that puts people ahead of 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
✓ GDPR and HIPAA compliant
✓ Based in Switzerland and protected by some of the world’s strongest privacy laws
What others say about Proton Calendar
“Proton Mail 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
What's New
In-app purchases
$6.49 - $154.99 per item
Version Information
- Version
- 2.29.0
- Downloads
- 500K+
- Updated on
- Dec 10, 2025
- Released
- Apr 13, 2022
- Requires
- Android 6.0
Statistics
Google Play Rating History
Rating Distribution
Downloads Over Time
Proton Calendar: Secure Events has been downloaded times. Over the past 30 days, it averaged downloads per day.
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Proton Calendar: Secure Events users say on Google Play
Anil Kushwaha
Why hasn't Proton launched 'Notes' App yet? Is there any chance such an app will be available in the future?
Mike Middleton
I've migrated from Google to Proton almost entirely, and am mostly happy with the product offerings. I'm hoping task list functionality will come soon, that will be huge! the increased privacy and security make up for the missing functionality however. Thanks Proton!
roi
Can I copy an event for fast manipulating events in this app? Scheduled events look the same as All Day events in calender month. Little things can outstand an app. Previously: Can't add/delete an event during offline.
Jeff Theis
The app looks great and has almost all that I need. Except: 1. Shared calendar and 2. No offline functionality. Unable to create events when offline. I have a paid subscription for Proton, but not having an offline functionality is an absolute deal breaker. Edit: Thanks for your response. This feature has been requested in 2022 already by other users. Edit 2: Is there an update when it will work offline? It's been 4 years since this has been requested.
Tarek K
This app is literally UNUSABLE. I'm surprised how it's still in this state. Every time I create a new event in the calendar app, the app gets stuck at loading when showing my calendar. I have to always switch between the tabs or force stop the app when even that doesn't work. Edit: Two years later and I still have the same issue ffs
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