Yes, both RepreZen API Studio and SwaggerHub offer a Free Trial.
RepreZen API Studio is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
SwaggerHub is designed for Large Enterprises, Medium Business and Small Business.
Pricing for RepreZen API Studio Starts at $22/Month when Billed Yearly whereas for SwaggerHub Starts at $90/Month when Billed Yearly.
Some top alternatives to RepreZen API Studio includes Postman, WSO2 API Manager, SwaggerHub, Plus, APITree, Apitive Studio, Bump, Meta API, API Maker and Dapi.
Some top alternatives to SwaggerHub includes Apigee Edge, Postman, MuleSoft Anypoint Platform, WSO2 API Manager, RepreZen API Studio, Stoplight, APITree, Apitive Studio, Meta API and Dapi.