About
Proton Calendar is a privacy-focused calendar app that keeps your schedule encrypted and private. It syncs events across all your devices, automatically imports invites from Proton Mail, and lets you view your calendar in agenda or day view with light or dark mode. You can create recurring events on daily, weekly, monthly, yearly, or custom schedules, set multiple reminders, and reply to invites. All event names, descriptions, and participants are protected by end-to-end encryption—the same technology used in Proton Mail. The app contains no ads, trackers, or data harvesting, and is based in Switzerland under strict privacy laws.
Highlights
- End-to-end encryption for all event names, descriptions, and participants
- Automatic event and invite import from Proton Mail inbox
- Recurring events on daily, weekly, monthly, yearly, or custom schedules
- Sync across all devices with no ads, trackers, or data harvesting
- Multiple reminders per event and agenda or day view options
Best for
People who prioritize privacy and want their calendar data protected from tracking and data harvesting. Journalists, organizations, and anyone handling sensitive scheduling information benefit from end-to-end encryption and zero-access storage.
At a glance
Proton Calendar: Secure Events is rated 3.4 out of 5 from 627 ratings and is available on iOS and Android — all free to download.
It is developed by Proton AG.
Screenshots
Frequently Asked Questions
- Is Proton Calendar: Secure Events free?
- Yes — Proton Calendar: Secure Events is free to download on iOS and Android.
- What platforms is Proton Calendar: Secure Events available on?
- Proton Calendar: Secure Events is available on iOS and Android.
- What is Proton Calendar?
- Proton Calendar is a privacy-focused calendar app that encrypts your events, invites, and schedule using end-to-end encryption. It syncs across all your devices, automatically imports events from Proton Mail, and contains no ads, trackers, or data harvesting.
- Does Proton Calendar sync with Proton Mail?
- Yes. Events and invites are automatically added to your calendar from your Proton Mail inbox, and your calendar stays in sync across all your devices.
- What encryption does Proton Calendar use?
- Proton Calendar uses the same end-to-end encryption technology as Proton Mail. Event names, descriptions, and participants are stored with zero-access encryption, meaning even Proton cannot access your calendar data.
- Can I create recurring events?
- Yes. You can create recurring events on a daily, weekly, monthly, yearly, or custom basis, and set multiple reminders for each event.
- What are the alternatives to Proton Calendar: Secure Events?
- Proton Calendar: Secure Events is similar to CopyMagic, Mullvad VPN, Proton Mail - Encrypted Email, and Arc Search — Find it, Faster. Browse related apps by tag: productivity, privacy, and encryption.
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