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Proton Calendar

Proton Calendar is a safe calendar that automatically secures all your events with end-to-end encryption. Events received from people who use other calendars are also secured with zero-knowledge encryption.

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Tool ID

Freemium Tool, Open Source
Android, iOS, Web-based
No Ads
Signup Required
No Credit Card Required
Use in: N/A

Limitations Highlights

1 Personal calendar
No sharing calendar via link

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