SYNCDATE keeps the calendars you hold at different companies honest about when you are busy, without any of them showing each other what you are doing.

Connect your Outlook or Microsoft 365 account alongside Google Calendar, iCloud, Fastmail, Nextcloud, or any CalDAV server. Choose which calendars feed which. Book a meeting at one company and the time is blocked at the others.

A copied event says "Busy" and nothing else by default. No subject, no attendees, no location. If you want the full detail on one of your own calendars, you turn that on for that calendar.

Who uses it

Consultants and contractors with a calendar at every client. Fractional executives and multi-company operators. Agency and studio owners. People whose week runs across three to eight accounts at different organisations.

How it works

Connect your accounts over OAuth.
Choose a direction: one way, or both ways.
Choose what crosses over: busy only, or the full details.
Outlook and Google push their changes to SYNCDATE as they happen. iCloud, Fastmail, Nextcloud, other CalDAV servers and subscribed feeds are checked every 15 minutes.

What it will not do

SYNCDATE only ever adds and removes its own copies. Your original events are not edited. Every run is recorded, and when you delete a sync you can have SYNCDATE remove everything it created.

Calendars supported

Microsoft Outlook and Microsoft 365, Google Calendar, iCloud, Fastmail, Nextcloud and other CalDAV servers, all two-way. Subscribed feed URLs (ICS) work as a read-only source.

Plans

Free — two calendars, kept in step, both sides treated the same. No card.
Plus — every account you have, several arrangements, one rule per arrangement.
Pro — a different rule for each calendar inside one arrangement. Busy to the client, full details to you.
Team — everyone's arrangements, billed once.

Subscriptions are handled on syncdate.app, not through Microsoft.

For IT administrators

SYNCDATE uses delegated permissions only: Calendars.ReadWrite and User.Read. It acts as the one person who signed in, on their own calendars, and never reads anyone else's data in your tenant. There is no tenant-wide install and no admin-level access. What we request and how to approve it: https://syncdate.app/support/workspace-admin

SYNCDATE

par DUMA DIGITAL SOLUTIONS S.R.L.