Yes, both Constant Contact and Kayako offer a Free Trial.
Constant Contact is designed for Large Enterprises, Medium Business and Small Business.
Kayako is designed for Large Enterprises, Medium Business and Small Business.
Pricing details for both Constant Contact and Kayako are unavailable at this time. Contact the respective providers for more information.
Some top alternatives to Constant Contact includes Pipedrive, Campaigner, Moosend and SMTP.
Some top alternatives to Kayako includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Freshservice, Freshdesk, Deskero, Teamwork Desk, LiveAgent, HelpDesk, SysAid, Jitbit Helpdesk, CRMdesk, Sitehelpdesk, LabiDesk, HESK and BoldDesk.