Yes, both Responster and Alchemer offer a Free Trial.
Responster is designed for Large Enterprises, Medium Business and Small Business.
Alchemer is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Responster Starts at $15.83/User/Month when Billed Yearly whereas for Alchemer Starts at $49/User/Month.
Some top alternatives to Responster includes SurveyMonkey, SmartSurvey, QuestionPro, SurveySparrow, Alchemer, Surveyface, Survs, Key Survey Software, SurveyRock, easyfeedback, Eureka Surveys and Cognito Forms.
Some top alternatives to Alchemer includes Feedier, QuestionPro, SurveySparrow, Enalyzer, Couchsurvey, SurveyRock, easyfeedback, Cognito Forms, Typeform, SurveyMonkey Enterprise and Alium.