Qase offers Free Trial, but QATTS does not.
QATTS is designed for Large Enterprises, Medium Business and Small Business.
Qase is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for QATTS Starts at $100/Month whereas for Qase Starts at $20/User/Month when Billed Yearly.
Some top alternatives to QATTS includes BrowserStack, LambdaTest, Sauce Labs, TestingBot, CloudQA, Qase, Kualitee, Automaton, QuAck and QA touch.
Some top alternatives to Qase includes TestRail, CloudQA, Testim, TestCaseLab, QARA Enterprise, QACoverage, TestProject, TestFairy, Automaton and QA touch.