Yes, both Onboard.io and Client offer a Free Trial.
Onboard.io is designed for Large Enterprises, Medium Business and Small Business.
Client is designed for Freelancers, Medium Business and Small Business.
Pricing for Onboard.io Starts at $149/Month whereas for Client Starts at $4.99/Month when Billed Yearly.
Some top alternatives to Onboard.io includes Blackboard Learn, Affinity Canvas, CrowdSync, Kompassify, Experience Layer, Onboard by HR Cloud, GuideCX, Inboarding, iStart and Click Boarding.
Some top alternatives to Client includes SuperSaaS, SalesCRM, Client Book CRM, AllClients, oClient, Clientshare, Freshdesk Customer Success (Formely Freshsuccess), Qualified, Checkeden, Workvivo and InsightSofa.