Circles allows your users to create their own groups of users/colleagues/friends. Those groups of users (or circles) can then be used by any other app for sharing purpose (files, social feed, status update, messaging, …).
Find the app on the app store: https://apps.nextcloud.com/apps/circles
Differents type of circles can be created:
- A Personal Circle is a list of users known only to yourself. Use this if you want to send messsage or share thing repeatedly to the same group of people.
- Hidden Circle is an open group that can be protected by a password. Select this circle to create a community not displayed as a Public Circle.
- A Private Circle require an invitation or a confirmation from an admin. This is the best circle if you are looking for privacy when sharing your files or your ideas.
- A Public Circle is an open group visible to anyone that dare to join. Your circle will be visible to everyone and everyone will be able to join the circle.