When first developed, Forum Plus is the first and only Drupal 9 theme for the forum website. We are not sure if there are any other ones now but we're sure you cannot miss this one.
Lots of time for designing and developing have been put on the theme. We take pride in the work and the results have been proved by lots of customers having purchased and used it.
This time, we make it free.
The reason? It has been one of our most loved themes and we want to give more chances for people to use it.