Yes, both Aircall and Zendesk Sell offer a Free Trial.
Aircall is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Zendesk Sell is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Aircall Starts at $30/User/Month whereas for Zendesk Sell Starts at $19/User/Month when yearly.
Some top alternatives to Aircall includes Novanet Cloud Contact Center, CloudTalk, HoduCC, Call Center Studio, Dialpad Contact Center, 3CX, Vonage Contact Center and RingCentral Contact Center.
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.