Yes, both Zendesk Sell and Opinew offer a Free Trial.
Zendesk Sell is designed for Large Enterprises, Medium Business and Small Business.
Opinew is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Zendesk Sell Starts at $19/User/Month when yearly whereas for Opinew Starts at $9.99/Month.
Some top alternatives to Zendesk Sell includes Thryv, Salesforce Sales Cloud, monday sales CRM by monday.com, Pipedrive, Zoho CRM, Vendasta, Hubspot Marketing Hub, ClickUp, Salesforce, HubSpot CRM, Pipeliner CRM, Keap, SalesCRM, SimpleCRM, Snapforce CRM and Pipeline CRM.
Some top alternatives to Opinew includes ReviewBuzz, ReviewInc, Reputation.com, Trustpilot, Review Tool, Revi, Reputation Studio, ReviewRev, Grab Your Reviews and Reeview.