Yes, both SurveyMonkey and Slemma offer a Free Trial.
SurveyMonkey is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Slemma is designed for Medium Business and Small Business.
Pricing for SurveyMonkey Starts at $25/User/Month whereas for Slemma Starts at $89/Month when Billed Yearly.
Some top alternatives to SurveyMonkey includes Checkbox Survey, SmartSurvey, QuestionPro, SurveySparrow, Qualtrics Core XM, Alchemer, Key Survey Software, SurveyExpression, PopSurvey, Cognito Forms, Typeform and SurveyPro.
Some top alternatives to Slemma includes Alteryx, iDashboards, DataHero, Databox, DashThis, Klipfolio Dashboard, myDATA3, Easy Insight, AppInsights and Analytics Canvas.