Form to Mailchimp add-on for Google Forms integrates with Mailchimp, allowing you to create or update subscribers/contacts/members while your form is submitted. Free Features/Limitations: * Create 25 contacts/month Premium Features: * Create any number of contacts as per your Mailchimp plan Video help: https://youtu.be/eefuOv9_OmA For more details about quotas visit: https://developers.google.com/apps-script/guides/services/quotas