We released the unbranded WordPress plugin under the name Landing Pages App. The plugin is available here.
From now on, Agency owners can offer their customers a plugin that allows them to embed their landing pages on WordPress, without seeing the Smartpages logo and name.
The general usage of the plugin remains the same as for the standard, Smartpages branded WP plugin. If you want to know how to install it and import landing pages, check out the manual for the WordPress plugin.