Yes, both TestRail and Automaton offer a Free Trial.
TestRail is designed for Large Enterprises, Medium Business and Small Business.
Automaton is designed for Freelancers, Medium Business and Small Business.
Pricing details for both TestRail and Automaton are unavailable at this time. Contact the respective providers for more information.
Some top alternatives to TestRail includes Jira, ReQtest, Zoho BugTracker, Bug-Track.com, TestCaseLab, Qase, Kualitee, QuAck, Crash Catch and QA touch.
Some top alternatives to Automaton includes Provar, TestingBot, CloudQA, TestRobotic, Testim, QARA Enterprise, Qase, VFlax, TestProject and ZAPTEST.