HelpNinja offers Free Trial, but MailChimp does not.
HelpNinja is designed for Large Enterprises, Medium Business and Small Business.
MailChimp is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price of HelpNinja begins at $29/Month when Billed Yearly, while pricing details for MailChimp are unavailable.
Some top alternatives to HelpNinja includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Freshservice, Freshdesk, Teamwork Desk, HelpDesk, SysAid, Jitbit Helpdesk, eStreamDesk, ReadyDesk, HelpdeskEddy, AzureDesk, HESK, DeskXpand and BoldDesk.
Some top alternatives to MailChimp includes Campaigner, Moosend and SMTP.