We’ve developed a new integration platform that can connect different software services together. It’s called Middle and is currently in free beta.
We recently added the ability to add or update a subscriber in Mailchimp. For example, Middle can automatically update your Mailchimp subscriber list when a new customer is added to your point of sale system like Square or your membership system like MINDBODY.
Feel free to schedule a call with us if you use Mailchimp and would like to give this a try.
https://calendly.com/middle/mailchimp-integration