Neither MailChimp nor GAannotations offers a free trial.
MailChimp is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
GAannotations is designed for Medium Business and Small Business.
Pricing details for both MailChimp and GAannotations are unavailable at this time. Contact the respective providers for more information.
Some top alternatives to MailChimp includes Campaigner, Moosend and SMTP.
Some top alternatives to GAannotations includes Crystal Ball, June, Needl, Qualified, Analytics Canvas, Workvivo, Analytics4now, Albato, Veezoo, Slymetrix Analytics, IFTTT and TurboAnchor.