The golden days of submission software are long behind us.
Back in the day, back when Pluto was still a planet and gasoline was fairly cheap, search engines required new sites to be submitted to them. Rapid automated submission of sites and pages within sites could help sites rank more effectively.
That’s no longer the case. Google, Yahoo, Microsoft and other top search engines will find your site on their own through inbound links. Submitting is at best unnecessary, and, in the view of some, a negative.
Directories are a different story. There are still many web directories that will give your site a link for free, and in some cases getting such a link will either drive traffic on its own or provide a modest boost in the search engines. Submission software cannot wholly automate this task, but the better submission modules can identify worthwhile directories and help expedite the task.