http://tutacomm6oqwlbbpd246mljjxpupuxxqj2jg5mfdyegeaetdauigslad.onion/blog/release-notes-calendar-share
Please check the pricing calculator at the end of our pricing page for details. The sharing feature will evolve into a collaboration feature (sharing
drive data, etc.) without raising the price then. By booking the sharing feature, you can share multiple calendars with an unlimited number of Tutanota users.