Work and personal calendars, one availability
If your week is spread across several calendars — a work one, a personal one, and often one more for each client or project, you already know the tax: every time someone asks for a slot, you open all of them and cross-check by hand before you dare say yes.
The appointment arrives and you check every calendar by hand
A client emails: "Does Thursday at three work?" You have a work calendar, a personal calendar, and a separate calendar for each engagement. None of them knows about the others. So you open each one, scroll to Thursday, and hope you did not miss the dentist you booked from your phone last week.
Do that ten times a week and the round-trip stops being a small thing. The real cost is the near-miss: the double-booking you catch a beat too late, or the evening you gave away because one calendar was in another tab.
Blockers remove the round-trip
FREIGABE reads the busy times from each calendar you add and writes a plain "busy" blocker onto the others. Nothing about the event travels. Not the title, not the guests, not the notes, only that the time is taken.
Once every calendar carries everyone else’s busy blocks, any one of them shows your true availability. You answer "Thursday at three" by looking at a single calendar, because that one already knows about all the rest.
Combine multiple calendars into one availability
This is the whole idea: combine multiple calendars into one availability, without moving your appointments or merging your accounts. Each calendar stays where it is and keeps its own events; FREIGABE only shares the busy time between them.
And it stays one flat price, not a fee per calendar. Tools that charge for each calendar you connect get expensive fast once you are past two or three; adding your fourth, fifth, or tenth calendar here costs nothing extra.
How to start
Connect the calendars you can with a Google or Microsoft account, add them to your sync group, and the busy blocks begin flowing between them.
For a calendar you cannot connect directly, most often a Microsoft 365 account belonging to a client’s organization, publish it as an iCalendar (.ics) feed and paste that link instead. A pasted feed brings the busy time in one direction and needs nothing installed on the other side.
Publish it busy-only (Outlook’s “Can view when I’m busy” option) and the event details never leave that calendar, so the client’s titles and guests never reach FREIGABE at all. There is nothing to strip, because there is nothing to strip from.
Connecting a Microsoft 365 account directly may need the organization’s Microsoft 365 admin to approve FREIGABE first; a calendar published as a feed works without that approval, which is why the pasted-feed path is the reliable one for a calendar you do not administer. See how to get an ICS link.
Weighing the cost? See how the price compares. Privacy-minded? Here is what we do with your data.