Neither MailChimp nor Rocketseed offers a free trial.
MailChimp is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Rocketseed is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Rocketseed begins at $1/User/Month, while pricing details for MailChimp are unavailable.
Some top alternatives to MailChimp includes Campaigner, Moosend and SMTP.
Some top alternatives to Rocketseed includes Xink, Newoldstamp, Crossware Mail Signature, Exclaimer, MySigMail, WiseStamp, AdSigner, MySignature, CodeTwo Email Signatures for Office 365 and Signature.email.