It works properly

The plugin works exactly as it is described. It installs just one function which adds a script with a call to their own external JavaScript, that’s all it has.

The only difference in this version of the plugin that the script code is called from ‘wp_footer‘. The plugin version that is distributed from the Subscription Genius site adds the action with a call to external JavaScript into the ‘wp_head‘.

Again, you will need an account at Subscription Genius – all settings will further be done in Subscription Genius Paywall section at the Subscription Genius profile settings.