Hello @dantedaniel
Thank you for trying our plugin and for sharing your feedback.
With the Free edition of the plugin you can only add CAPTCHA checks to the native WordPress forms, mainly the login form, comments and password reset. You can add CAPTCHA to these forms by simply checking the setting in the plugin’s settings. You do not need any shortcode.
Shortcodes are needed if you want to add CAPTCHA to non-native custom forms, and all documentation and support for the shortcode can be found in the Premium edition.
I hope the above helps. Should you require any further information, please do not hesitate to get in touch.
Have a great weekend.