After creating your calendar, you will receive an "editor link" and a "reader link" in addition to the "administrator link". Share the "editor link" with people who should be allowed to create and edit events. Share the "reader link" with people who should only be allowed to view the existing events. In the settings, you can edit all links and create new links if necessary.
No, you just have to forward the correct link (editor / reader) to other people so that they can view the calendar. Even if you create a calendar for the first time as an administrator, registration or an accountare not necessary.
In contrast to social networks or similarly large platforms, which are designed to "collect data", it is our goal to collect as little data as possible from you. Your e-mail address is only used to send you to your calendar. You will also receive a list of access links by e-mail for security reasons in case you lose them.
The access links are hexadecimal coded with a length of 20 characters. This results in about 1.2 quadrillion possible combinations. Thus, it is nearly impossible to guess an access link. As an additional security measure, unauthorized access is recorded and the corresponding IP addresses are blocked.