CalendarGuardian™

CalendarGuardian scans calendars already synchronized to your device and explains suspicious invitation signals with a 0–100 risk score. Review a flagged event, trust its organizer, block the exact sender and remove the event, remove it without creating a block, or restore a removed event as a new local copy.

CalendarGuardian works with calendar sources the device exposes, including iCloud/CalDAV, Google, Exchange/Microsoft, Yahoo-synchronized, and local calendars. Scoring, exact-sender rules, and a bounded removal history remain on the device. CalendarGuardian does not collect your calendar-account password and never automatically accepts, tentatively accepts, or declines an invitation.

An annual subscription is required after any introductory trial offered through Google Play. You can restore an eligible purchase from inside the app.