Munich Startup
Calendar Sync

Calendar Sync

If you use Google Workspace for work and Apple iCloud privately—or juggle multiple Outlook accounts as a freelancer—you know the problem: double bookings, manual synchronization, and the uneasy feeling when appointment details end...

Founded2026
Business Model-
Industry-
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About Calendar Sync

If you use Google Workspace for work and Apple iCloud privately—or juggle multiple Outlook accounts as a freelancer—you know the problem: double bookings, manual synchronization, and the uneasy feeling when appointment details end up in foreign systems. Calendar Sync solves this by synchronizing only free/busy availability between calendars. No titles, no participants, no notes leave your respective account. In the target calendar, only “Blocked” appears—the time slot is reserved, the content stays private. Supported are Google Calendar, Microsoft Outlook, Apple iCloud, Infomaniak KSuite, and any iCal feeds. The entire infrastructure runs at Hetzner in Nuremberg, and a data processing agreement is available. Calendar Sync is aimed at freelancers, self-employed professionals, small teams, and families in the DACH region who use multiple calendars and want to avoid double bookings without giving sensitive data to US services. Currently free to use, pricing coming in the next few weeks.

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