Yes, both Close and Salesforce Service Cloud offer a Free Trial.
Close is designed for Individuals, Freelancers, Medium Business and Small Business.
Salesforce Service Cloud is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Close Starts at $19/user/month when monthly whereas for Salesforce Service Cloud Starts at $25/user/month when yearly.
Some top alternatives to Close includes Salesforce Sales Cloud, Pipedrive, Thryv, Vendasta, ClickUp, Zoho CRM, Freshsales, GoCRM, SimpleCRM, FIVE CRM, webCRM, Cratio CRM, DigitalCRM.com, Alore CRM, Truly, Pipeline CRM and CRM.io by 500apps.
Some top alternatives to Salesforce Service Cloud includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Freshservice, Freshdesk, LiveAgent, HelpDesk, SysAid, Jitbit Helpdesk, HubSpot Service Hub, Help Scout, UseDesk, LabiDesk, AzureDesk, HESK and BoldDesk.