Yes, both Salesforce and Zendesk Explore offer a Free Trial.
Salesforce is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Zendesk Explore is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Salesforce Starts at $25/User/Month whereas for Zendesk Explore Starts at $49/User/Month.
Some top alternatives to Salesforce includes Salesforce Sales Cloud, Pipedrive, Thryv, Vendasta, Hubspot Marketing Hub, Dynamics 365 Marketing, ClickUp, Zoho CRM, HubSpot CRM, Microsoft Dynamics 365 for Sales, Netsuite CRM, Keap, Wisdom CRM, SalesCRM, SimpleCRM and Zoho CRM Plus.
Some top alternatives to Zendesk Explore includes Evidence, Databox, ManageEngine Analytics Plus, Metric.ai, Dundas BI, SAS Business Intelligence, SAP BusinessObjects BI, Panintelligence, ibi Analytics Platform and myDATA3.