Yes, both WordPress and Zendesk Sell offer a Free Trial.
WordPress is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Zendesk Sell is designed for Large Enterprises, Medium Business and Small Business.
Pricing for WordPress Starts at $4/Month when Billed Yearly whereas for Zendesk Sell Starts at $19/User/Month when yearly.
Some top alternatives to WordPress includes Unbounce, VWO Deploy, SITE123, Wix, Squarespace, Webflow, Builder, WebsiteBuilder, Format, WeWeb, Shopify, Drupal, Concrete5, WebBoss and Web.com.
Some top alternatives to Zendesk Sell includes Salesforce Sales Cloud, Pipedrive, Thryv, Vendasta, Hubspot Marketing Hub, ClickUp, Zoho CRM, Salesforce, HubSpot CRM, Pipeliner CRM, Keap, SalesCRM, SimpleCRM, Snapforce CRM and Pipeline CRM.