Postman

Yes, Postman is free for individuals with core features, 3 shared workspaces, and 1,000 API calls/month. Paid plans start at $12/user/month (Basic) for teams needing more collaboration.

Postman Basic costs $12/user/month, Professional costs $29/user/month (advanced features), and Enterprise is custom. Annual billing provides discounts.

Postman is used for API development, testing, documentation, and collaboration. Features include request building, automated testing, mock servers, API documentation, and monitoring.

Yes, Postman includes comprehensive API testing with JavaScript test scripts, automated collection runs, CI/CD integration, and test reporting. You can validate responses and create test suites.

Collections are groups of saved API requests that can be shared, versioned, and run together. They're used for organizing APIs, creating documentation, and sharing with team members.

Yes, Postman auto-generates API documentation from collections. Docs include request examples, response samples, and descriptions. You can publish docs publicly or keep them private.

Postman has more features and larger community. Insomnia is open-source, lighter, and preferred by some developers. Postman is better for teams; Insomnia for individual developers wanting simplicity.