Proton Calendar: Secure Events

Proton Calendar: Secure Events

Proton AG·4.3 ★·FREE

Screenshots

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Description

Proton Calendar is an easy-to-use planner and a time-management tool that keeps your schedule private

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

Developer

Proton AG

Developer ID: 7672479706558526647

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Ratings & Reviews

4.3

8,371 ratings

1,000,000+ downloads

5★
59%
4★
19%
3★
13%
2★
6%
1★
3%

Recent Reviews

Jacqui

v2.34.0

I like that this app has taken the "less is more" approach and not overly complicated things over the years. The Proton cares attitude with privacy and simplistic UI is what keeps me coming back again and again. Thanks, guys!

21 Sept 2026

A

v2.34.0

after opening event information and clicking the back button brings me to an empty grey screen instead of the calender

Developer Response

The team is aware of this behavior, and we've noted your report in the existing ticket we have for this issue. Thanks for flagging it to us and we appreciate your patience in this matter. We'd appreciate it if you revisited your rating once the issue has been resolved.

20 Sept 2026

19 Sept 2026

Rob

v2.33.2

Widget is archaic. Where is the month view calendar like most other calendar widgets out there? Once this is rolled out I'll look to update.

Developer Response

Not there yet. We do have an existing request, and we'll document your +1 to help the team prioritize future implementations. Thanks for the feedback.

20 Sept 2026

18 Sept 2026

Neil Romig

I have other CalDAV calendars which I cannot import or otherwise integrate into this app, and I don't want two apps for one job so until I can display my CalDAV calendars its not for me. Update: proton replied so I now know they don't support CalDAV!

Developer Response

Hi Neil. Thanks for the feedback - we'll pass it along to the team. Currently, direct third-party integration is not supported, but you can subscribe to external calendars via the web app. Neverthelss, we've added your +1 for this existing request internally.

16 Sept 2026

16 Sept 2026

Josh McCullough

v2.34.0

Middling at best, lacking key features several years into existence. There's no search function, nor sync feature to pull in other calendars *and* keep them updated. I'm paying to be a beta tester, basically. It lacks address lookup found in better calendar apps like Google Calendar. You get privacy, but at what cost?

Developer Response

We appreciate the honest feedback. A search feature and direct sync integration have been requested before, and we'll note your +1 to help the team prioritize future improvements. If you have any other suggestions or features you'd like to see implemented, let us know by editing your review. We'd love to get your input on what we can do to improve.

16 Sept 2026

16 Sept 2026

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