What are the paid account premium features?

Premium Features are separated into Basic and Unlimited Plans.

Basic Plan includes all core features, premium reports (Dashboard fully unlocked), 1 Autoresponder and the option to remove Campayn branding from Emails.

Unlimited Plan includes all core features, priority email support, unlimited autoresponders, custom html editor, attachments, premium reports (Dashboard fully unlocked), option to remove Campayn branding from Emails.

You can learn more about the plans here: https://www.campayn.com/pricing