[[WP Subscribe Pro] Mailster or custom email?]

Can I use the provided HTML from for Mailster to integrate with WP Notification Bars?  Or a Bloom form?

[[WP Subscribe Pro] Mailster or custom email?]

I am interested in WP Subscribe Pro and WP Notification bars.  I want to use Mailster on a site and I have Newsletter on another few sites, I use another SMTP service for email.

 

Can I  integrate a sign up form in a notification bar or subscribe page with Mailster or their custom HTML form?   Or the Bloom optin plugin?

Also, if I pay annually for all of the plugins, is there a renewal discount?