FREIGABE

FREIGABE stops double bookings when your week is spread across several calendars. It watches every connected calendar and writes private blocker events into the others, so colleagues and booking tools see you as busy everywhere. Only the time slot travels: titles, guests and notes never leave the calendar they came from.

It connects to Google Calendar and Microsoft 365 / Outlook directly, and to any other calendar through a pasted ICS link. Changes propagate in seconds, each blocker is labelled with its source calendar, and blockers disappear on their own when the original event is moved or cancelled. Each connection can run two-way or outbound only.

Key benefits:

• Real-time sync so a new meeting blocks your other calendars within seconds
• Content-free blockers that carry the busy time and nothing else
• Source labels showing which calendar a blocker came from
• Two-way or outbound-only sync set per connected calendar
• ICS feed support for calendars that cannot be connected directly
• Unlimited connected accounts within fair use on every plan
• Flat pricing at 5 euros a month or 50 euros a year, not per calendar

FREIGABE is built and operated by SAILBAHN GmbH, a software company in Vienna, Austria, under Austrian law. Event content is processed in memory and not stored; the service keeps only time blocks and one-way hashes for change detection. It runs on Google Cloud Run in the EU (Belgium region), with Google handling sign-in and Supabase providing the database.

There is a 7-day free trial rather than a free plan. It suits consultants, freelancers and anyone juggling a client calendar next to their own.