Caltsu

About

Juggling Outlook for work, Google Calendar for personal use, and perhaps several client or iCloud calendars? Caltsu prevents scheduling conflicts and privacy breaches, like accidental calendar sharing. It provides real-time, two-way synchronization of busy/free data across Google, Outlook, and Apple calendars, without sharing event specifics. Setup takes only minutes, and it operates discreetly. The free version supports two accounts with one-way sync. Upgrade to Pro for €7 monthly to manage up to ten accounts, utilize unlimited rules, and enable bidirectional synchronization with webhooks.