Yes, both CrowdPower and Segment offer a Free Trial.
CrowdPower is designed for Large Enterprises, Medium Business and Small Business.
Segment is designed for Large Enterprises, Medium Business and Small Business.
Pricing for CrowdPower Starts at $48/Month when Billed Yearly whereas for Segment Starts at $120/Month.
Some top alternatives to CrowdPower includes Customer.io, SimpleCRM, Parlor, ClientSuccess, Custify, Segment, Ortto, Freshdesk Customer Success (Formely Freshsuccess), Engage.so and Smartarget.
Some top alternatives to Segment includes CustomerLabs CDP, BlueConic, Captain Metrics, Zylotech, Lexer, Acquia Marketing Cloud, BSI CDP, Gravito CDP and euromessage CDP.