APSIS Pro for WP integrates APSIS Pro with WordPress and makes it possible to add subscription forms to APSIS Pro on your site. You can have multiple subscription forms pointing to different mailing lists and one form can have checkboxes for multiple mailing lists. The forms can be added to your site with shortcodes and widgets.
If you have any general questions regarding this plugin, please visit WordPress forums.
For more information on integration with APSIS Pro, goto
http://customers.anpdm.com/apsisproforwordpress/help.html.
Visit APSIS’ web page at
www.apsis.com.
Feel free to make pull requests for improvement on Github at
https://github.com/iseqqavoq/apsis-pro-for-wp