The term "subscribe form" refers to a type of form that collects subscriber information. When the form is submitted, it will add a new contact to your Delivra account or update an existing contact with that email address in your account.
Typically subscribe forms are used on your website and ask for minimal information. A subscribe form can remain hosted in your account and simply linked to on your website, or the form code can be exported and hosted on your website.
Please see these additional articles from our Help Center: