The Private Content addon allows site administrators to provide content that is only visible to users.
This can be content that is shown to all users, which you can define in Users > Settings > Profiles > Profiles Content:
You can also set different content for each user. You can do this buy editing the user in the WordPress admin dashboard.
Both these pieces of content will be shown in a ‘Private Content’ tab on the users profile, but only displayed when the logged in user views their own profile.