Currently, BetterDocs is only for WordPress and you can manage everything from your WordPress Dashboard easily. However, the ‘Instant Answer’ tool offers cross-domain integration. So, you can easily copy the code snippet and paste it on your website even if it’s a non-WordPress. The Instant Answer tool will then be displayed on your site and show all the content.
You will find the Cross-Domain options by navigating to wp-admin -> BetterDocs -> Instant Answer -> Cross Domain Settings. Simply by pasting the code snippet, you will be able to use BetterDocs on non-WordPress websites.