Is your calendar encrypted?
No. Google Calendar, iCloud Calendar and Outlook Calendar all hold the keys to your events, and invites to other people go out as normal email.
Checked on 25 October 2026. 3 apps, 12 sources.
Made by Secria. Secria Workspace, opening soon, will compete with these apps. How we check
Sorted by how many parts are sealed by default, then by how many can be. Ties go A to Z.
| App | Your events | Invites to others | Post‑quantum |
|---|---|---|---|
| Google CalendarGoogle | Google can read it | Google can read it | Not yet |
| iCloud CalendarApple | Apple can read it | Apple can read it | Not yet |
| Outlook CalendarMicrosoft | Microsoft can read it | Microsoft can read it | Not yet |
| Secria CalendarMade by us | Opening soon | Opening soon | Opening soon |
Secria Workspace, with Drive, Calendar and Pages, made by us, opens soon. Join the waitlist