Yes, both Travis CI and Sauce Labs offer a Free Trial.
Travis CI is designed for Large Enterprises, Medium Business and Small Business.
Sauce Labs is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Travis CI begins at $69/Month, while pricing details for Sauce Labs are unavailable.
Some top alternatives to Travis CI includes Codeship, Semaphore, GitLab, CircleCI, Bamboo, Buildkite, CloudBees Core, AppVeyor and GitlabRunner.
Some top alternatives to Sauce Labs includes Provar, BrowserStack, Screenster, LambdaTest, Endtest, CloudQA, Perfecto, Firelab, BugBug and AWS Device Farm.