Automatic set up

WPCode is a different plugin entirely, run by the same team as WPBeginner. They may have adopted a very similar name and styling to us, but we’re completely separate companies/plugins.

If you want to investigate what process they have that caused their plugin to be automatically added to your site, you might need to ask over at their support forum: https://www.ads-software.com/support/plugin/insert-headers-and-footers/