Yes, both Copper (ProsperWorks CRM) and Aircall offer a Free Trial.
Copper (ProsperWorks CRM) is designed for Large Enterprises, Medium Business and Small Business.
Aircall is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Copper (ProsperWorks CRM) Starts at $23/User/Month when Billed Yearly whereas for Aircall Starts at $30/User/Month.
Some top alternatives to Copper (ProsperWorks CRM) includes Pipedrive, Freshsales, Salesflare, Close, Vendasta, Keap, ClickUp, Zoho CRM, Salesforce, The Real Estate CRM, Workbooks CRM, Thryv, GoCRM, RealtimeCRM, SalesCRM, SimpleCRM, CRM.me, Cool Life CRM and CRM.io by 500apps.
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.