Xenforo

Sends email to staff members when there's a new registration.

Removes Current visitors link from members page.

Adds your affiliate ID to specified URLs.

Referral contests are optional and members can use their referral link without contests.

Allow certain users can posting as anonymous

To Adds a widget to a thread that displays members who are currently viewing the thread.

Discover BlockUsers, a powerful and intuitive add-on designed to improve the user experience

utilizes PHP Carbon/Nesbot to display the user's joined date in the format of year, month, and day.

Make iO unique with category strips that automatically change color

Allow users can sign in or connect their account with apple account.

Show all post share icons in a post instead of tooltip.

Stick sidebar on scrolling on almost any page by your choice.

Xenith brings it’s lighter look which suitable for any forum along with many different abilities

Show reports in specific time range.

Display group catalogs to help users quick navigating.