FastSpring offers Free Trial, but MailChimp does not.
MailChimp is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
FastSpring is designed for Large Enterprises, Medium Business and Small Business.
Pricing details for both MailChimp and FastSpring are unavailable at this time. Contact the respective providers for more information.
Some top alternatives to MailChimp includes Pipedrive, Campaigner, Moosend and SMTP.
Some top alternatives to FastSpring includes Chargebee, Paddle, BillingPlatform, ChimpCharge, 2Checkout, EBizCharge, ReCharge, plug&paid, BigCommerce, Selly, PayPro Global and Web.com.