Business plan is suitable for organizations with multiple team members or that require a absher or SMS authentication of signers. 

Below are some key functionalities the business plan has which are not in the starter plan:

 - Having many users linked to the same organization

 - Having multiple teams in the same organization

 - Creating custom branding for the email templates of your organization

 - Sharing templates and documents among team members.

 - Sending documents in bulk for many users to sign with their own individual copy of the document

 - Authenticating signers via SMS or Absher

 - Sending unlimited signature requests (while starter plan is limited to only 50 signature requests per month)