Neither MailChimp nor Checkbox offers a free trial.
MailChimp is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Checkbox is designed for Large Enterprises, Medium Business and Small Business.
Pricing details for both MailChimp and Checkbox 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 Checkbox includes Quick Base, NoCodeZ, DOCOVA, Logiak, 2OS App Builder, DrapCode, Undaku, OptimumHQ, Codeless, Code2 and CitizenDeveloper.