Very Good Calendar Sync is a synchronisation application for your macOS calendars.
Regardless of whether you use Google, Microsoft, iCloud or CalDav for your calendars, Very Good Calendar Sync will be able to synchronise events between them.
When opened, the application looks like the screenshot below, showing some statistics about the configured synchronisations.
When the window is closed, the application will continue to run in the background and can be shown again via its menu bar icon.
You can install Very Good Calendar Sync directly from the Mac App Store.
Either search for “Very Good Calendar Sync” in the Mac App Store or follow the link below:
The core idea behind Very Good Calendar Sync is simple. Given a source and target calendar, make sure that all events from source will show up in target.
Additionally, no calendar data is exposed outside the calendars a user chooses to synchronise into. Meaning Very Good Calendar Sync keeps all data local and local only! Calendar data is sensitive and should never be transferred outside where it's needed.
This is why Very Good Calendar Sync only keeps track of event identifiers to keep everything synchronised. The actual content of each event is not stored anywhere except in the events themselves.
Very Good Calendar Sync